The primary function of the prostate gland is:
A. To store underdeveloped sperm before ejaculation.
B. To regulate the acidity and alkalinity of the environment for proper sperm development.
C. To produce a secretion that aids in the nourishment and passage of sperm.
D. To secrete a hormone that stimulates the production and maturation of sperm.
Correct Answer: C. To produce a secretion that aids in the nourishment and passage of sperm.
The prostate gland is located below the bladder and surrounds the urethra. It serves one primary purpose: to produce a secretion that aids in the nourishment and passage of sperm. The prostate gland is situated in the true pelvis and plays a supportive role in the male reproductive system. Its principal purpose is to secrete an alkaline solution protective for sperm in the acidic environment of the vagina.
Option A: The cauda epididymis functions as a storage location for functionally mature sperm cells prior to ejaculation. At a given time, between 50 and 80% of sperm in the epididymal lumen are located in the cauda epididymis, depending on species.
Option B: The fluid acts to balance the acidity of the vagina, which increases the overall lifespan of the sperm, allowing the greatest length of time to fertilize an egg successfully. The fluid also contains supportive proteins and enzymes that provide nourishment to sperm.
Option D: The testis is the male reproductive gland that is responsible for producing sperm and making androgens, primarily. Testosterone levels are controlled by the release of Luteinizing Hormone (LH) from the anterior pituitary gland; whereas, Follicle-Stimulating Hormone (FSH) levels control sperm production.
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