What part of the male reproductive system produces seminal fluid?

Correct Answer: B

Rationale: The correct answer is B: Seminal vesicles. Seminal vesicles produce seminal fluid, which is a major component of semen. They contribute fructose, prostaglandins, and other substances to nourish and protect sperm. The prostate gland (choice A) produces a milky fluid that helps activate sperm. The epididymis (choice C) is a coiled tube where sperm mature and are stored. The testes (choice D) produce sperm and testosterone, but not seminal fluid. Therefore, the correct choice is B as seminal vesicles specifically produce seminal fluid.

Correct Answer: C

Rationale: The correct answer is C: FSH. Follicle-stimulating hormone (FSH) stimulates the production of sperm in males by acting on the testes. FSH plays a crucial role in spermatogenesis by promoting the growth and maturation of sperm cells. Estrogen (A) and progesterone (D) are female sex hormones and do not directly stimulate sperm production. Testosterone (B) is important for sperm production but is not the hormone that directly stimulates it; rather, it plays a role in maintaining overall reproductive function in males.

Correct Answer: A

Rationale: The epididymis functions to store sperm and allow them to mature. Sperm produced in the testes are transported to the epididymis where they undergo maturation and become motile. This process is essential for sperm to acquire the ability to fertilize an egg. The other choices are incorrect because the epididymis does not produce testosterone (B), transport sperm to the urethra (C), or produce seminal fluid (D). Testosterone is primarily produced in the testes, sperm transport to the urethra occurs mainly through the vas deferens, and seminal fluid is produced by the accessory glands.

Correct Answer: B

Rationale: The correct answer is B: Estrogen. Estrogen is the primary hormone responsible for the development of female secondary sexual characteristics such as breast development, widening of hips, and regulation of the menstrual cycle. Testosterone (choice A) is the hormone responsible for male secondary sexual characteristics. Progesterone (choice C) plays a role in the menstrual cycle and pregnancy. FSH (choice D) is a hormone that stimulates the growth of ovarian follicles in females but is not directly responsible for the development of female secondary sexual characteristics.

Correct Answer: A

Rationale: The correct answer is A: FSH (Follicle-Stimulating Hormone). FSH is responsible for stimulating the production of sperm in males by acting on the Sertoli cells in the testes. It promotes the maturation of sperm cells and supports sperm production. LH (Choice B) is responsible for stimulating testosterone production in the testes, not sperm production. Testosterone (Choice C) is a male sex hormone produced by the testes but does not directly stimulate sperm production. Prolactin (Choice D) is a hormone primarily involved in lactation and has no direct role in sperm production.