Domina Conceptos Médicos

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Pelvis: Anatomía

La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 "hip" bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy está formada por la cintura pélvica ósea, el piso pélvico muscular y ligamentoso y la cavidad pélvica, que contiene vísceras, vasos y múltiples nervios y músculos. La cintura pélvica, compuesta por 2 huesos de la “cadera” y el sacro, es una estructura ósea en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de anillo del esqueleto axial Axial Computed Tomography (CT) que une la columna vertebral con las extremidades inferiores. Las articulaciones del anillo pélvico incluyen la sínfisis púbica en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la parte anterior y las articulaciones sacroilíacas en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la parte posterior. Los LOS Neisseria huesos de la cadera están formados por 3 huesos fusionados: el pubis, el isquion y el ilion. La cavidad pélvica alberga varias estructuras gastrointestinales, urinarias y reproductivas, que son sostenidas por los LOS Neisseria músculos y el tejido conectivo del piso pélvico. La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 "hip" bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy femenina, que se adapta al AL Amyloidosis parto, es generalmente más ancha y más grande que la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 "hip" bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy masculina.

Last updated: Dec 15, 2025

Editorial responsibility: Stanley Oiseth, Lindsay Jones, Evelin Maza

Estructura de la Pelvis Ósea

Huesos

La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy es una estructura en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de anillo que rodea y protege la cavidad pélvica. La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy está compuesta por los LOS Neisseria siguientes huesos:

  • 2 “huesos de la cadera”, que constan de 3 huesos cada uno; estos 3 huesos están separados al AL Amyloidosis nacer, unidos por cartílago hialino y se fusionan por completo al AL Amyloidosis final de la adolescencia:
    • Ilion:
      • El más grande de los LOS Neisseria 3 huesos
      • Constituye la parte superior del acetábulo
      • La espina iliaca anterosuperior, espina iliaca anteroinferior, cresta iliaca y la espina iliaca posterosuperior son puntos de referencia del examen físico anatómico.
    • Isquion:
      • Cara inferior de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy y cara posteroinferior del acetábulo
      • La proyección ósea inferior es la tuberosidad isquiática, que es el lugar de inserción de los LOS Neisseria isquiotibiales proximales.
    • Pubis:
      • Porción anteromedial de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy
      • Se unen en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la sínfisis púbica en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum dirección anteromedial
    • Acetábulo:
      • Formado a partir de partes del ilion, isquion y pubis
      • Encaje en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de copa de la articulación de la cadera (forma la articulación acetabulofemoral con la cabeza del fémur)
  • Sacro:
    • Hueso en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de mariposa formado por la fusión de las 5 vértebras sacras
    • Se articula con los LOS Neisseria 2 huesos de la cadera en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la parte posterior
    • Cada lado se articula con el ilion a través de las articulaciones sacroilíacas.
  • Cóccix:
    • Extremo terminal de la columna
    • Inferior al AL Amyloidosis sacro
    • Lugar de inserción para varios músculos, tendones y ligamentos de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy

Articulaciones

Hay 4 articulaciones primarias dentro de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy:

  • Sacroilíacas:
    • Articulaciones sinoviales
    • Compuestas por las superficies articulares del sacro y el ilion
    • Transmiten peso desde la columna vertebral a los LOS Neisseria huesos de la cadera y las extremidades inferiores
  • Sacrococcígea:
    • Articulación cartilaginosa
    • Compuesta por la base del cóccix y la superficie ovalada en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum el vértice del sacro
  • Sínfisis púbica:
    • Articulación cartilaginosa
    • Compuesta por las ramas superiores izquierda y derecha de los LOS Neisseria huesos púbicos
  • Articulación lumbosacra:
    • Localizada entre la columna lumbar (L5) y el sacro
    • Estabilizada por los LOS Neisseria ligamentos iliolumbares
Vista superior de la cintura pélvica, 4 articulaciones primarias de la pelvis

Vista superior de la cintura pélvica, mostrando las 4 articulaciones primarias de la pelvis

Imagen por BioDigital, editado por Lecturio.

Ligamentos

La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy ósea está estabilizada principalmente por los LOS Neisseria siguientes ligamentos:

  • Ligamento sacroilíaco anterior y posterior: soporta la articulación sacroilíaca
  • Ligamento sacrotuberoso:
  • Ligamento sacroespinoso:
  • Ligamentos de la articulación de la cadera
Vista anterior de la pelvis

Vista anterior de la pelvis, mostrando los ligamentos de soporte de las articulaciones de la cintura pélvica

Imagen por BioDigital, editado por Lecturio.

Cavidad Pélvica

La cavidad pélvica está delimitada por los LOS Neisseria huesos de la cintura pélvica y contiene principalmente órganos reproductores, órganos urinarios y el recto. Como la cavidad peritoneal descansa en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la cavidad pélvica, los LOS Neisseria espacios de esta región también se consideran parte del espacio de la cavidad pélvica. Mediante el uso de ligamentos y puntos de referencia óseos, la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy se puede dividir en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum varias aberturas, agujeros y espacios.

Aberturas de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy

  • Entrada pélvica:
    • Abertura superior de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy
    • Límite entre las cavidades pélvica y abdominal
  • Salida pélvica:
    • Abertura inferior de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy
    • Circunferencia inferior de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy menor
Tabla: Aberturas de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy
Localización Límites Contenido
Entrada pélvica Abertura pélvica superior
  • Anterior: línea pectínea, cresta púbica y margen superior de la sínfisis púbica
  • Posterior: promontorio sacro, borde anterior del ala sacra
  • Lateral: línea arqueada
  • Uréter
  • Cordón espermático
  • Ligamento redondo del útero
  • Ligamento suspensorio del ovario
  • Vasos medios del sacro
  • Vasos gonadales
  • Vasos iliolumbares
  • Tronco lumbosacro
  • Tronco simpático
  • Nervio obturador
Salida pélvica Abertura pélvica inferior
  • Anterior: sínfisis púbica, rama isquiopúbica y ligamento púbico arqueado
  • Posterior: sacro y cóccix
  • Lateral: tuberosidades isquiáticas y ligamentos sacrotuberosos
  • Inferior: diafragma pélvico y urogenital
Partes terminales de los LOS Neisseria sistemas excretor, reproductivo y digestivo

Agujeros de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy

  • Agujero ciático mayor:
    • Conecta la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy con la región de los LOS Neisseria glúteos
    • Separado del foramen ciático menor por el ligamento sacroespinoso
  • Agujero ciático menor: conecta la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy con la parte posterior del muslo
  • Agujero obturador:
    • Conecta la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy al AL Amyloidosis muslo
    • Casi completamente cubierto por la membrana obturadora
Tabla: Agujeros de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy
Estructura Límites Contenido
Agujero ciático mayor Formado por:
  • Ligamento sacroespinoso (se extiende desde el borde lateral del sacro y el cóccix hasta la espina isquiática)
  • Ligamento sacrotuberoso (se extiende desde el borde lateral del sacro y el cóccix hasta la tuberosidad isquiática)
  • Inferior: ligamento sacroespinoso y espina isquiática
  • Superior: ligamento sacroilíaco anterior
  • Anterolateral: escotadura ciática mayor del ilion
  • Posteromedial: ligamento sacrotuberoso
  • Músculo piriforme
  • Agujero suprapiriforme: vasos y nervios glúteos superiores
  • Agujero infrapiriforme:
    • Nervio pudendo
    • Vasos pudendos internos
    • Nervio ciático
    • Nervio y vasos glúteos inferiores
    • Nervio del músculo obturador interno
    • Nervio del músculo cuadrado femoral
    • Nervio cutáneo femoral posterior
Agujero ciático menor
  • Superior: ligamento sacroespinoso y espina isquiática
  • Anterior: tuberosidad isquiática
  • Posterior: ligamento sacrotuberoso
  • Nervio pudendo
  • Vasos pudendos internos
  • Tendón y nervio del músculo obturador interno
Agujero obturador
  • Formado por los LOS Neisseria huesos del isquion y el pubis.
  • Delimitado por un margen delgado (surco del obturador) al AL Amyloidosis que se une la membrana del obturador, creando el canal obturador
  • Tubérculo obturador anterior (pubis)
  • Tubérculo obturador posterior (isquion)
  • Arteria obturatriz
  • Vena obturatriz
  • Nervio obturatriz

Espacios peritoneales de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy

La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy tiene múltiples espacios relacionados con el extremo caudal de la cavidad peritoneal y los LOS Neisseria pliegues peritoneales que se encuentran dentro de las vísceras:

  • Bolsa rectovesical:
    • Existe solo en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum hombres
    • Localizada entre la parte superoposterior de la vejiga urinaria y la parte superomedial del recto
  • Bolsa rectouterina de Douglas:
    • Existe solo en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum mujeres
    • Localizada entre la parte superoposterior del útero y la parte superomedial del recto
  • Fosa pararrectal:
    • Se conecta en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum ambos lados con la bolsa rectovesical/rectouterina
    • Localizada a ambos lados del recto intraperitoneal Intraperitoneal Peritoneum: Anatomy
    • Límites laterales: pliegues uterosacros/sacrogenitales (mujeres/hombres)
  • Bolsa vesicouterina:
    • Existe solo en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum mujeres
    • Localizada entre la superficie posterior de la vejiga urinaria y la superficie anterior del útero
  • Espacio rectovesical:
    • Existe solo en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum hombres
    • Localizado posterior a la porción inferior de la vejiga urinaria y la próstata, inferior a la bolsa rectovesical
  • Fosa isquiorrectal: de forma triangular, a ambos lados del recto inferior y del ano
  • Espacio retropúbico de Retzius: localizado entre la superficie posterior del pubis y la superficie anterior de la vejiga/próstata en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum los LOS Neisseria hombres

Variaciones anatómicas de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy ósea

Existen variaciones anatómicas entre la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy femenina (ginecoide) y masculina (androide).

  • Ginecoide:
    • Considerada la “forma clásica de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy femenina”
    • Generalmente más ancha que su contraparte masculina, con espinas isquiáticas menos prominentes, como una adaptación para el parto
  • Androide: considerada la “forma clásica de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy masculina”
La pelvis ginecoide versus la pelvis androide

La pelvis ginecoide versus la pelvis androide

Imagen por Lecturio.

Piso Pélvico

Descripción general

El piso pélvico, también conocido como diafragma pélvico, es un grupo de músculos que sostiene las vísceras abdominales y pélvicas. El piso pélvico tiene 3 capas:

  • Capa superficial:
    • También conocida como periné o capa perineal superficial
    • Región en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de diamante entre el cóccix y la sínfisis púbica
  • Capa intermedia:
    • Diafragma pélvico
    • Separa el periné de la cavidad pélvica
  • Capa profunda:
    • Diafragma urogenital
    • Separa la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy superior del saco perineal profundo
Tabla: Estructuras del piso pélvico
Capa superficial: periné Capa intermedia: diafragma pélvico Capa profunda: diafragma urogenital
Características Región superficial en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum forma de diamante entre el cóccix y la sínfisis púbica Separa el periné de la cavidad pélvica Separa la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy superior del saco perineal profundo
Componentes
  • Isquiocavernoso
  • Bulbocavernoso/bulboesponjoso (mujeres/hombres)
  • Músculo perineal transversal superficial
  • Esfínter anal externo
  • Elevador del ano
  • Coccígeo
  • Piriforme
  • Obturador interno
  • Músculo perineal transversal profundo
  • Esfínter uretral
  • Membrana perineal
  • Músculo compresor de la uretra
Inervación Nervio pudendo Raíces nerviosas sacras ( S3 S3 Heart Sounds–S5) Nervio pudendo
Función Soportar y elevar el piso pélvico

Músculos del piso pélvico

Los LOS Neisseria músculos del piso pélvico tienen varias funciones importantes:

  • Brindar soporte físico a las vísceras pélvicas y prevenir el prolapso de órganos pélvicos
  • Mantener la continencia urinaria y fecal
  • Ayudar en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum el parto
Tabla: Músculos del piso pélvico
Capa Músculo Origen Inserción
Periné Isquiocavernoso Tuberosidad isquiática Raíces del pene
Bulbocavernoso/bulboesponjoso (mujeres/hombres) Rafe medio tendinoso central del periné Membrana perineal superficial y aponeurosis dorsal del pene/clítoris
Perineal transversal superficial Tuberosidad isquiática Músculo transverso perineal del lado contralateral
Esfínter anal externo 2 planos musculares aplanados rodean el ano y se unen anteriormente para insertarse en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum el cuerpo perineal
Diafragma pélvico Grupo elevador del ano: puborrectal, pubococcígeo e iliococcígeo Puborrectal: cuerpo del pubis (pasa alrededor de la parte inferior del recto) Puborrectal: se encuentra con su homólogo contralateral en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la línea media
Pubococcígeo: cuerpo del pubis y arco tendinoso anterior Pubococcígeo: coxis y ligamentos anococcígeos
Iliococcígeo: espinas isquiáticas y arco tendinoso posterior Iliococcígeo: coxis y ligamentos anococcígeos
Coccígeo Espina isquiática y ligamento sacroespinoso Sacro inferior y cóccix
Piriforme Sacro anterior y margen superior de la escotadura ciática mayor Trocánter mayor
Obturador interno Ramas isquiopúbicas y membrana obturatriz Cara medial del trocánter mayor
Diafragma urogenital Perineal transversal profundo Ramas isquiáticas inferiores Contraparte contralateral
Esfínter uretral Esfínter uretral interno: vejiga inferior a la uretra proximal (extensión del músculo detrusor)
Esfínter uretral externo: rama isquiopúbica hacia el plano medio, donde se une con su músculo homólogo contralateral
Músculo compresor de la uretra Se origina en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la rama púbica inferior y se envuelve anteriormente alrededor de la uretra para fusionarse con su contraparte contralateral

Vasos e Inervación de la Pelvis

Irrigación arterial

La irrigación sanguínea a la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy proviene de:

  • Aorta Aorta The main trunk of the systemic arteries. Mediastinum and Great Vessels: Anatomy abdominal: se bifurca en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum las arterias ilíacas comunes izquierda y derecha
  • Arteria ilíaca común: se bifurca en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la articulación sacroilíaca hacia las arterias ilíacas internas y externas
  • Arteria ilíaca interna: se divide en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum un tronco anterior (irriga las vísceras pélvicas) y un tronco posterior (región glútea)
  • Ilíaca externa:
    • Desprende las arterias epigástrica inferior e iliaca circunfleja profunda
    • Se convierte en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la arteria femoral después de pasar el ligamento inguinal

Drenaje venoso

Las 3 venas principales de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy siguen el curso de las arterias y se denominan en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum consecuencia:

  • Vena ilíaca común:
    • Unión de las venas ilíacas externas e internas
    • Se une con la vena ilíaca común contralateral para convertirse en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la vena cava inferior
  • Vena ilíaca interna: responsable de la mayor parte del drenaje venoso pélvico
  • Vena iliaca externa:
    • Continuación proximal de la vena femoral
    • Drena principalmente las extremidades inferiores
Arterias y venas de la pelvis.

Arterias y venas de la pelvis

Imagen por BioDigital, editado por Lecturio

Inervación

La inervación de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy es proporcionada por ramas del plexo sacro, incluido el nervio pudendo, que se forma a partir del plexo sacro, S2 S2 Heart Sounds S4 S4 Heart Sounds. La pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy recibe inervación tanto somática como autónoma.

  • Inervación motora a:
    • Esfínteres uretrales y anales externos
    • Elevador del ano
    • Bulboesponjoso
    • Isquiocavernoso
  • Inervación sensorial a:
    • Periné
    • Pene/clítoris
    • Escroto posterior/labios
    • Canal anal
  • Reflejo de la erección:
    • Nervio pudendo aferente → activa el arco reflejo
    • Fibras parasimpáticas en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum raíces S2 S2 Heart Sounds S4 S4 Heart Sounds
  • Simpático: pene/clítoris (eyaculación masculina)
Nervios de la pelvis

Nervios de la pelvis

Imagen por BioDigital, editado por Lecturio

Relevancia Clínica

  • Fracturas pélvicas: ocurren con mayor frecuencia en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum pacientes involucrados en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum lesiones por impacto de alta energía, como accidentes automovilísticos o caídas. Debido a la naturaleza de alta energía de este trauma, las fracturas pélvicas a menudo se consideran fracturas inestables y las personas pueden presentar compromiso vascular y lesiones concomitantes del sistema genitourinario. Las personas mayores con osteoporosis Osteoporosis Osteoporosis refers to a decrease in bone mass and density leading to an increased number of fractures. There are 2 forms of osteoporosis: primary, which is commonly postmenopausal or senile; and secondary, which is a manifestation of immobilization, underlying medical disorders, or long-term use of certain medications. Osteoporosis pueden presentar fracturas pélvicas después de lesiones de bajo impacto.
  • Hernia Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the abdominal wall or the respiratory diaphragm. Hernias may be internal, external, congenital, or acquired. Abdominal Hernias obturatriz: hernia Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the abdominal wall or the respiratory diaphragm. Hernias may be internal, external, congenital, or acquired. Abdominal Hernias del contenido pélvico o abdominal a través del agujero obturador. La hernia Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the abdominal wall or the respiratory diaphragm. Hernias may be internal, external, congenital, or acquired. Abdominal Hernias obturatriz ocurre con mayor frecuencia en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum el lado derecho, ya que el colon Colon The large intestines constitute the last portion of the digestive system. The large intestine consists of the cecum, appendix, colon (with ascending, transverse, descending, and sigmoid segments), rectum, and anal canal. The primary function of the colon is to remove water and compact the stool prior to expulsion from the body via the rectum and anal canal. Colon, Cecum, and Appendix: Anatomy sigmoide bloquea el canal obturador del lado izquierdo. Esta hernia Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the abdominal wall or the respiratory diaphragm. Hernias may be internal, external, congenital, or acquired. Abdominal Hernias a menudo se presenta con obstrucción intestinal o dolor Dolor Inflammation lancinante en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum la parte medial del muslo, que se extiende hasta la rodilla, debido a la compresión del nervio obturatriz.
  • Insuficiencia o disfunción del piso pélvico: el piso pélvico sostiene las vísceras abdominales y pélvicas. Esta estructura separa el periné de la cavidad pélvica y ayuda a controlar la función del esfínter de los LOS Neisseria tractos rectal, urinario y genital. El debilitamiento del tejido conectivo y/o de los LOS Neisseria músculos puede provocar insuficiencia del piso pélvico, lo que contribuye a los LOS Neisseria trastornos del piso pélvico. La disfunción del piso pélvico incluye prolapso de órganos pélvicos (e.g., prolapso del útero), incontinencia urinaria e incontinencia fecal.
  • Parto: el parto comienza con contracciones que conducen a una dilatación y borramiento progresivos del cuello uterino, lo que da como resultado el nacimiento del bebé y la expulsión de la placenta Placenta A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (chorionic villi) derived from trophoblasts and a maternal portion (decidua) derived from the uterine endometrium. The placenta produces an array of steroid, protein and peptide hormones (placental hormones). Placenta, Umbilical Cord, and Amniotic Cavity a través del canal de parto de la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy. El parto vaginal es posible debido a las diferencias anatómicas entre la pelvis Pelvis The pelvis consists of the bony pelvic girdle, the muscular and ligamentous pelvic floor, and the pelvic cavity, which contains viscera, vessels, and multiple nerves and muscles. The pelvic girdle, composed of 2 “hip” bones and the sacrum, is a ring-like bony structure of the axial skeleton that links the vertebral column with the lower extremities. Pelvis: Anatomy ósea en EN Erythema nodosum is an immune-mediated panniculitis (inflammation of the subcutaneous fat) caused by a type IV (delayed-type) hypersensitivity reaction. It commonly manifests in young women as tender, erythematous nodules on the shins. Erythema Nodosum hombres y mujeres.

Referencias

  1. Bordoni, B., Sugumar, K., Leslie, S.W. (2021). Anatomy, abdomen and pelvis, pelvic floor. StatPearls. Retrieved November 9, 2021, from https://pubmed.ncbi.nlm.nih.gov/29489277/
  2. Chaudhry, S.R., Nahian, A., Chaudhry, K. (2021). Anatomy, abdomen and pelvis, pelvis. StatPearls. Retrieved November 9, 2021, from https://www.ncbi.nlm.nih.gov/books/NBK482258/
  3. Drake, R.L., Vogl, A.W., Mitchell, A.W.M. (2014). Gray’s Anatomy for Students, 3rd ed. Churchill Livingstone.

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