What hormone stimulates the growth of the uterine lining during the menstrual cycle?

Correct Answer: A

Rationale: Estrogen is the correct answer as it stimulates the growth of the uterine lining during the menstrual cycle. Estrogen is produced by the ovaries and peaks around ovulation, promoting the thickening of the endometrium to prepare for potential implantation. Progesterone, on the other hand, helps maintain the uterine lining after it has been thickened by estrogen. FSH and LH are involved in follicle development and ovulation, respectively, but they do not directly stimulate uterine lining growth.

Correct Answer: C

Rationale: The corpus luteum is formed from the ruptured follicle after ovulation. It secretes progesterone to prepare and maintain the uterine lining for potential implantation of a fertilized egg. This is crucial for a successful pregnancy. Options A, B, and D are incorrect because the corpus luteum's main function is to secrete progesterone, not to stimulate ovulation, produce estrogen, or mature eggs.

Correct Answer: D

Rationale: The correct answer is D: Epididymis. The epididymis is a coiled tube located on the back of each testicle where sperm mature and are stored before ejaculation. It allows for sperm to gain motility and fertilizing ability. The other choices (A, B, C) are incorrect because the vas deferens is the tube that carries sperm from the epididymis to the urethra, seminal vesicles produce seminal fluid that nourishes and transports sperm, and the prostate gland secretes fluids that protect and nourish sperm, but none of these structures store sperm before ejaculation.

Correct Answer: B

Rationale: The correct answer is B: LH (Luteinizing Hormone). LH regulates the development and function of the testes in males by stimulating Leydig cells to produce testosterone. FSH (Choice A) stimulates sperm production but does not directly regulate testes development. Testosterone (Choice C) is produced by the testes and is not a regulating hormone. Prolactin (Choice D) is not involved in testes development.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.