What is the function of the prostate gland in males?

Correct Answer: A

Rationale: The correct answer is A: Secretes seminal fluid. The prostate gland in males secretes a milky fluid that makes up a significant portion of semen. This fluid helps nourish and protect sperm, aiding in their motility and viability. It also contains enzymes that aid in the liquefaction of semen after ejaculation. Summary: B: Produces sperm - Incorrect. Sperm is produced in the testes, not the prostate gland. C: Produces testosterone - Incorrect. Testosterone is primarily produced in the testes and is not a function of the prostate gland. D: Stores sperm - Incorrect. Sperm is stored in the epididymis and vas deferens, not the prostate gland.

Correct Answer: B

Rationale: The main function of the corpus luteum is to produce progesterone. After ovulation, the corpus luteum forms from the ruptured follicle and secretes progesterone to prepare the uterine lining for implantation. Progesterone also helps maintain the early stages of pregnancy. Estrogen is mainly produced by the follicles, not the corpus luteum. The corpus luteum does not stimulate ovulation; that is the role of the follicles. Supporting implantation is more related to the actions of progesterone rather than the corpus luteum itself.

Correct Answer: B

Rationale: The correct answer is B: The vagina transports sperm from the cervix to the uterus. This is because the vagina serves as the passageway for sperm to travel from the cervix through the uterus and into the fallopian tubes to fertilize the egg. The other choices are incorrect because: A) Fertilization typically occurs in the fallopian tubes, not the vagina. C) Estrogen is primarily produced by the ovaries, not the vagina. D) Sperm is not stored in the vagina after ejaculation, as it quickly travels through the cervix to reach the uterus.

Correct Answer: B

Rationale: Estrogen is the correct answer as it stimulates the growth of the uterine lining during the proliferative phase of the menstrual cycle. It is produced by the developing ovarian follicles. Progesterone maintains the uterine lining in the second half of the cycle. FSH and LH are involved in follicle development and ovulation, respectively, but they do not directly stimulate uterine lining growth.

Correct Answer: D

Rationale: The correct answer is D: Fallopian tube. The rationale is as follows: Sperm meets the egg in the fallopian tube during fertilization. The fallopian tube provides the ideal environment for fertilization to occur due to its structure and cilia movement that help transport the egg and sperm. The other options are incorrect because: A: Ovary is where the egg is produced but not where fertilization occurs. B: Cervix is the lower part of the uterus and allows passage of sperm into the uterus but not the site of fertilization. C: Uterus is where the fertilized egg implants and develops into a fetus, but not where fertilization occurs.