Male Reproductive System
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Questions and Answers

What is the function of the interstitial cells of Leydig in the testes?

to secrete the hormone testosterone after puberty

How many lobules are present in each testis?

200 to 300

What is the name of the tubule that forms from the combination of tubules at the upper pole of the testis?

epididymis

What is the approximate length of a testis?

<p>4.5cm</p> Signup and view all the answers

What are the three layers of tissue that surround the testis?

<p>Tunica vaginalis, Tunica albuginea, and Tunica vasculosa</p> Signup and view all the answers

What is the name of the duct that transports sperm away from the testis?

<p>ductus deferens</p> Signup and view all the answers

Where is the deferent duct located and what is its function?

<p>The deferent duct is located in the spermatic cord and its function is to transport spermatozoa.</p> Signup and view all the answers

What is the role of FSH in sperm production?

<p>FSH (Follicle-Stimulating Hormone) from the anterior pituitary controls sperm production.</p> Signup and view all the answers

Describe the structure of a mature sperm.

<p>A mature sperm has a head filled with a nucleus, a body packed with mitochondria, and a whip-like tail.</p> Signup and view all the answers

Why is a lower temperature necessary for spermatogenesis?

<p>Spermatogenesis requires a temperature about 3°C below normal body temperature.</p> Signup and view all the answers

Describe the arterial supply to the testis.

<p>The testicular artery branches from the abdominal aorta, just below the renal artery.</p> Signup and view all the answers

What is the venous drainage pathway of the testis?

<p>The testicular vein passes into the abdominal cavity, with the left vein opening into the left renal vein and the right vein draining directly into the inferior vena cava.</p> Signup and view all the answers

Where is the ductus deferens located in relation to the spermatic cord?

<p>The ductus deferens lies vertically in the posterior part of the spermatic cord.</p> Signup and view all the answers

What is the function of the seminal vesicles during ejaculation?

<p>The seminal vesicles contract and expel their stored contents, seminal fluid, during ejaculation.</p> Signup and view all the answers

What are the three layers that make up the prostate gland?

<p>The three layers are: 1) an outer fibrous layer, 2) a layer of smooth muscle, and 3) glandular substance composed of columnar epithelium.</p> Signup and view all the answers

What percentage of semen is made up of the fluid secreted by the prostate gland?

<p>The prostate gland secretes a fluid that makes up about 30% of the semen.</p> Signup and view all the answers

Where do the ducts of the seminal vesicles and the deferent ducts unite?

<p>The ducts of the seminal vesicles and the deferent ducts unite to form an ejaculatory duct.</p> Signup and view all the answers

What is the location of the prostate gland in the pelvic cavity?

<p>The prostate gland lies in front of the rectum and behind the symphysis pubis.</p> Signup and view all the answers

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