Lectures

Male Reproductive System: Other

by Geoffrey Meyer, PhD
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    In this lecture, I’m going to describe the accessory ducts and also the glands associated with the male reproductive system. It’s important at the end of this lecture that you are able to identify each of the duct systems and know what role they have in transporting sperm from the testes to the penis. I want you to understand and identify the different sorts of accessory glands, the prostate, seminal vesicle, and also their role in nourishing and protecting the sperm after ejaculation. You should all have a good understanding also of the structure of the penis and how blood flow going to the penis creates an erection. These ducts are very important because they store the mature spermatozoa. The glands add secretions to the ejaculate to provide the nourishment for those spermatozoa in the ejaculate. And it’s important to understand the structure of the penis as an organ of copulation in the male, and also, the organ that delivers urine outside the body. It contains the urethra. And the urethra is a common conduit for delivering not only urine but also the ejaculate. This slide illustrates the major organs of the male reproductive system. And I’ve listed those organs on the left-hand side of the slide. I’ve already described the testis in a separate lecture. In this lecture, I’m going to concentrate on the other structures listed. Just look at the diagram and locate the testis. It’s a green circular structure suspended in the scrotum towards the base of the section of the slide. The bluey stained or colored component wrapping itself around, that posterior aspect of the testis is the epididymis, the ductus epididymis. And then that’s continuous with a long tube you see running up around the back of the bladder, that’s the vas or ductus deferens....

    About the Lecture

    The lecture Male Reproductive System: Other by Geoffrey Meyer, PhD is from the course Reproductive Histology. It contains the following chapters:

    • Male Reproductive System: Other
    • Testis, epididymis and the vas deferens
    • Epididymis
    • Ductus deferens and spermatic cord
    • Accessory sex glands
    • Prostate gland
    • Penis

    Included Quiz Questions

    1. has a prostatic part, membranous part and a penile part
    2. joins the ductus (vas) deferens to the prostate gland and seminal vesicle
    3. extend from the kidney to the bladder
    4. has a prostatic part and a penile part only
    5. has a penile part only
    1. Rete testis
    2. Straight tubules
    3. Ductuli efferentes (efferent ducts)
    4. Head of the epididymis
    5. Seminiferous tubules
    1. a number of layers of smooth muscle
    2. a uneven, epithelial surface
    3. very tall epithelial cells with microvilli
    4. very tall epithelial cells with stereocilia
    5. tall principal cells with cilia
    1. cooling of the arterial supply to the testis by the pampiniform plexus of veins draining the testis
    2. contraction of the cremaster muscle to minimise heat loss from the scrotum
    3. cooling of the pampiniform plexus arterial supply to the testis by the testicular vein draining the testis
    4. contraction of the dartos muscle when exposed to the cold, to raise the testis inside the scrotum close to the abdominal cavity, and so retain warmth
    5. the thickness of the tunica albuginea (capsule) of the testis that insulates the testis from a higher body temperature
    1. The prostate secretes a watery, alkaline fluid rich in fibrolysin which liquefies semen
    2. The prostate secretes a yellowish, whitish fluid rich in fructose which liquefies semen
    3. The seminal vesicle secretes a watery, alkaline fluid rich in fructose which liquefies semen
    4. The seminal vesicle can accumulate concretions that may impinge on the male urethra and prevent comfortable and rapid urination.
    5. The prostate secretes a watery, alkaline fluid rich in fructose which nourishes sperm
    1. is immediately surrounded by non - erectile tissue of the corpus spongiosum
    2. is immediately surrounded by erectile tissue of the corpus cavernosum
    3. is immediately surrounded by the tunica albuginea
    4. is immediately surrounded by erectile tissue of the corpus spongiosum
    5. is immediately surrounded by non-erectile tissue of the corpus cavernosum

    Author of lecture Male Reproductive System: Other

     Geoffrey Meyer, PhD

    Geoffrey Meyer, PhD


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