Which of the following best describes the function of the prostate gland?

Correct Answer: B

Rationale: The correct answer is B: Secretes fluids that make up semen. The prostate gland secretes a milky fluid that makes up a significant portion of semen, aiding in sperm mobility and viability. This fluid also helps neutralize the acidic environment of the vagina, enhancing sperm survival. Option A is incorrect as the testes store sperm, not the prostate gland. Option C is incorrect as testosterone is primarily produced in the testes. Option D is incorrect as sperm production is regulated by the hypothalamus and pituitary gland, not the prostate gland.

Correct Answer: A

Rationale: The correct answer is A: Ovary. Estrogen is primarily produced by the ovaries, specifically by the ovarian follicles. The ovaries contain specialized cells that produce estrogen in response to hormonal signals. Estrogen plays a crucial role in regulating the menstrual cycle, promoting the development of secondary sexual characteristics, and maintaining reproductive health. The other choices (B: Uterus, C: Fallopian tubes, D: Cervix) are incorrect because they do not play a direct role in the production of estrogen. The uterus is the organ where a fertilized egg implants and develops during pregnancy. The fallopian tubes are responsible for transporting eggs from the ovaries to the uterus. The cervix is the lower part of the uterus that connects to the vagina. While these structures are important for reproduction, they do not produce estrogen.

Correct Answer: B

Rationale: Testosterone is the correct answer because it is the primary male sex hormone responsible for the development of male secondary sexual characteristics such as facial hair, deep voice, and muscle growth. Estrogen (A) is the primary female sex hormone, progesterone (C) is involved in menstrual cycle regulation, and FSH (D) is a hormone that stimulates egg production in females.

Correct Answer: B

Rationale: Progesterone during pregnancy maintains the uterine lining by supporting the implantation and growth of the embryo. This hormone helps prevent the shedding of the uterine lining which is crucial for a successful pregnancy. Progesterone does not stimulate uterine contractions (choice A), inhibit ovulation (choice C), or stimulate milk production (choice D) during pregnancy.

Correct Answer: A

Rationale: The correct answer is A: Epididymis. The epididymis is a tightly coiled tube where sperm are stored and matured until ejaculation. It allows for the concentration and storage of sperm produced by the testes. The other choices are incorrect because: B: Seminal vesicles produce a fluid that nourishes and protects sperm, not store sperm. C: Vas deferens transports sperm from the epididymis to the urethra, but doesn't store sperm. D: Prostate gland produces a fluid that mixes with sperm to form semen, but does not store sperm.