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Which accessory gland in the male reproductive system contributes 60% of the total semen volume?

A.

Prostate

B.

Ductus Deferens

C.

Seminal Vesicle

Answer and Explanation

The Correct Answer is C

A. Prostate: The prostate gland contributes to the semen volume but only about 20-30%. It produces a fluid that nourishes sperm and helps transport them but is not the primary contributor to the total volume of semen.

B. Ductus Deferens: The ductus deferens (vas deferens) is a tube that transports sperm from the epididymis to the ejaculatory duct. It does not produce or contribute to the volume of semen.

C. Seminal Vesicle: The seminal vesicles contribute approximately 60% of the total semen volume. They secrete a fluid that is rich in fructose and other substances that provide energy for sperm and help in the formation of semen.


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Related Questions

Correct Answer is A

Explanation

A. Broad ligament: The broad ligament is a peritoneal fold that supports the uterus and attaches it to the lateral pelvic walls.

B. Adventitia: This is the outer connective tissue layer that supports the uterus but does not suspend it from the pelvic wall.

C. Round ligament: This ligament supports the uterus but primarily connects the uterus to the labia majora and does not suspend it from the lateral pelvic wall.

D. Ovarian fossa: This is a depression in the pelvic cavity that contains the ovaries, but it does not suspend the uterus.

Correct Answer is D

Explanation

A. Bone marrow: The bone marrow is primarily responsible for the production of blood cells, including red blood cells, rather than their removal.

B. Tonsils: The tonsils are part of the immune system and help filter pathogens but are not primarily involved in removing old red blood cells.

C. Thymus: The thymus is involved in the maturation of T-lymphocytes (T-cells) and does not have a role in filtering blood or removing red blood cells.

D. Spleen: The spleen filters the blood, removes old and damaged red blood cells, and helps in the immune response by filtering pathogens.

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