What is the primary function of the ovaries in females?

Correct Answer: A

Rationale: The primary function of the ovaries in females is to produce eggs, which are essential for reproduction. Ovaries contain structures called follicles that release mature eggs during ovulation. This process is crucial for fertilization to occur. The other choices are incorrect because storing sperm is the function of the male reproductive system, producing estrogen and progesterone is a function of the ovaries but not the primary one, and facilitating fertilization is a process that involves multiple reproductive structures, not just the ovaries. Hence, choice A is the correct answer.

Correct Answer: A

Rationale: The correct answer is A: Prolactin. Prolactin is the hormone responsible for triggering milk production in the mammary glands. It is produced by the pituitary gland in response to the suckling stimulus from a newborn. Oxytocin, on the other hand, is responsible for the ejection of milk from the mammary glands. Estrogen and progesterone play roles in the menstrual cycle and pregnancy but do not directly trigger milk production.

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: Estrogen. Estrogen is responsible for the development of secondary sexual characteristics in females such as breast development, widening of hips, and the growth of pubic and underarm hair. Testosterone (A) is a male sex hormone, progesterone (B) is involved in the menstrual cycle and pregnancy, and FSH (D) is a hormone that stimulates the ovaries to produce eggs. Estrogen plays a key role in the development and maintenance of female secondary sexual characteristics, making it the correct choice in this context.

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.