Reproductive System - Male Flashcards
What are the Components of the Male Reproductive System? (7)
- Testis
- Epididymis
- Vas Deferens
- Glands
- Ejaculatory Duct
- Penis
- Rectovesical Pouch (lowest part of abdominal cavity)
What are the 3 glands of the male reproductive systems?
- Seminal Vesicles (produces part of the semen)
- Bulbourethral Gland
- Prostate Gland
What is the Function of the Testis?
- Produce Sperm and Testosterone
Where is the hilum of the testis located? What does it carry?
Located - Posterior Border Carries - Testicular Blood Vessels - Lymphatics - Nerves
What are the borders of the Testis?
- Anterior
- Posterior
What are the surfaces of the Testis?
- Lateral
- Medial
What are the Poles of the Testis?
- Superior
- Inferior
Where are the Testis developed? Where are they located?
Developed
- In the abdomen during the embryonic stage
Located
- In the Scrotum
How do the Testis reach the scrotum after development in the abdomen?
- They descend through the anterior abdominal wall
What is the Tunica Albuginea?
- A fibrous Capsule that covers the testes
What are the invaginations of the tunica albuginea? What does it divide into?
- Septum: divides into 250 lobules, each lobule contains seminiferous tubules which produce sperm
What are the Efferent Doctules?
- Collect the sperm produced by the seminiferous tubule
- Converge in the center as rete testis
What is the Epididymis Composed of? What do they attach to?
- Head: attaches to the superior pole of the testis, directly receives sperm from the seminiferous tubules
- Body: attached to the posterior border of the testis
- Tail: attached to the inferior pole of the testis
What is the Function of the Epididymis? What is it composed of?
Function
- Stores sperm and promotes its maturation
Composed of
- Long muscular tubes that allow for sperm maturation, as the sperm travels through it
Describe the Structure of the Ductus (vas) Deferens?
- Muscular tube about 45cm in length
- Starts from the tail of epididymis, ascends through the spermatic cord, and ends at the posterior surface of the bladder
- Lies medial to the seminal vesicle and dilates distally to form the ampulla of vas deferens
- Distal to the ampulla, the vas deferens narrows again and joins the duct of the seminal vesicle to form the ejaculatory duct
What is the Structure and Function of the Seminal Vesicles?
Structure
- Two coiled tubular glands on either side of the midline lateral to the ampulla of the ductus deferens
Function
- Produces between 60-70% of the volume of the semen
How does the Ejaculatory Duct form?
- The joining of vas deferens and the seminal vesicle duct
Where is the ejaculatory duct located? where does it open into?
Located
- Contained within the prostate
Opens into
- The Prostatic Urethra
Where is the Prostate located?
- Immediately below the bladder
What is the function of the PRostate?
- Produces roughly 30-40% of the volume of the semen, which nourish and protect the semen
What happens to the prostate in 60% of the individuals above 60?
- Forms benign tumors
What happens when someone has a prostate turn into a benign tumor?
- Enlarged prostate will push against the inferior surface of the bladder
- Consequently, urine will not be emptied completely
- Increases the likelihood of urinary infections
What does the Bulbourethral Glands do?
- Produces a fluid just before ejaculation into the spongy urethra to adjust the pH and disinfect the urinary tract
What is the Penis composed of?
- 3 cylindrical erectile tissues: comprised of numerous tiny channels that are inflamed by blood
