Lectures

Coverings of the Spermatic Cord – Inguinal Region

by James Pickering, PhD
(1)

Questions about the lecture
My Notes
  • Required.
Save Cancel
    Learning Material 2
    • PDF
      Slides 03 Abdominal and Pelvic Anatomy Pickering.pdf
    • PDF
      Download Lecture Overview
    Report mistake
    Transcript

    00:01 the spermatic cord in the male. This is important because as these structures pass through, as I mentioned previously, they take a covering with them and we can see that on this diagram here. Here, we have the testes and we can see that they have passed through. This diagram indicates the superficial inguinal ring here and we can see it’s passed through the superficial inguinal ring. Up here, we can see we have got the deep inguinal ring that is lying lateral to inferior epigastric blood vessels and this diagram’s depicting the canal as being in this kind of region here, this region from between the superficial and the deep inguinal rings. If we look at the other side of the diagram which we can see in more detail here, we can see how the ductus deference, which is here, if we follow that all the way back up, this is originating from the testes... originating from the testes which would have migrated through the anterior abdominal wall, lateral to the epigastric blood vessels, would have migrated in this direction. As assumed, coverings related to the structures it passed through and what this forms is the spermatic cord that surrounds those structures I mentioned a moment ago. So, let’s have a look. We can see we have transversalis fascia, we have transversus abdominis, we have internal oblique and we have external oblique. Now, we have 4 layers. Remember those four layers that form the antero abdominal wall. Importantly, remember the only three of those layers had the testes penetrating through them. The one that it didn’t penetrate through was transversus abdominis, was this one. Remember that just formed the roof of the inguinal canal, it didn’t actually... the testes didn’t actually pass through it, the testes passed through the other three. So, let’s have a look.

    02:05 Here, we imagine the testes are coming through in this direction. So, the first landmark they see or the first landmark they come across, they engage with, is transversalis fascia.

    02:18 So, we can now see the transversalis fascia has a layer taken all the way around the testes.

    02:26 This transversalis fascia becomes the internal spermatic fascia, the internal spermatic fascia, the deepest of the fascial layers that forms the spermatic cord.

    02:43 Superficial to transversalis fascia or anterior to transversalis fascia, we have transversus abdominis where the testes didn’t penetrate that. The next anterior or most superficial layer that the testes penetrated was internal oblique. So, here, we can see internal oblique and that’s also running down in this direction. Internal oblique is muscular. So, it carries these muscle fibers and these muscle fibers extend around the internal spermatic fascia and this becomes the cremasteric fascia or cremaster muscle. This muscle’s really important. Contraction of this muscle will elevate the testes closer to the body to help retain their temperature, cremaster muscle.

    03:37 That forms the middle layer of the spermatic cord. The final layer that the testes penetrated as they made their way through the abdominal wall was external oblique and here, we can see external oblique and that also forms an outer layer and that layer is the external spermatic fascia. The testes penetrated through the anterior abdominal wall, transversalis fascia, internal oblique aponeurosis and its muscle fibers and also, external oblique.

    04:10 And as the testes migrated into the scrotum, they retained those coverings which then went on to surround the spermatic cord. External spermatic fascia, external oblique, cremasteric fascia with muscle, internal oblique and internal spermatic fascia, transversalis fascia and we can see those in this diagram.


    About the Lecture

    The lecture Coverings of the Spermatic Cord – Inguinal Region by James Pickering, PhD is from the course Abdomen.


    Included Quiz Questions

    1. Internal oblique muscle.
    2. External oblique.
    3. Transversus abdominis.
    4. Transversalis fascia.
    5. Rectus abdominis muscle.
    1. Transversus abdominis muscle.
    2. External oblique muscle.
    3. Internal oblique muscle.
    4. Transversalis fascia.
    5. Rectus abdominis muscle.
    1. Transversalis fascia.
    2. External oblique muscle.
    3. Internal oblique muscle.
    4. Cremaster muscle.
    5. Rectus abdominis muscle.

    Author of lecture Coverings of the Spermatic Cord – Inguinal Region

     James Pickering, PhD

    James Pickering, PhD


    Customer reviews

    (1)
    5,0 of 5 stars
    5 Stars
    5
    4 Stars
    0
    3 Stars
    0
    2 Stars
    0
    1  Star
    0