Which of the following is a function of the clitoris in the female reproductive system?

Correct Answer: C

Rationale: The correct answer is C: Provide sexual pleasure. The clitoris is a highly sensitive organ with numerous nerve endings, making it a key structure for sexual arousal and pleasure in females. Stimulation of the clitoris can lead to sexual satisfaction and orgasm. Choices A, B, and D are incorrect because the clitoris does not provide support for the uterus, facilitate sperm entry, or support the vaginal walls. It is important to differentiate between the functions of different reproductive organs to understand their roles in the body.

Correct Answer: B

Rationale: The correct answer is B: Leydig cells secrete testosterone. These specialized cells are located in the testes and are responsible for producing and releasing testosterone, the primary male sex hormone. Testosterone plays a crucial role in the development of male reproductive organs, sperm production, sex drive, and secondary sexual characteristics. Choice A is incorrect because sperm production is primarily carried out by the Sertoli cells. Choice C is incorrect as Leydig cells do not store sperm. Choice D is incorrect as sperm transport is mainly facilitated by the vas deferens and other structures in the male reproductive system.

Correct Answer: C

Rationale: The primary role of FSH in females is to stimulate follicle development. FSH promotes the growth and maturation of ovarian follicles, which contain the eggs. This process is essential for ovulation and the release of a mature egg for potential fertilization. Choice A, stimulating ovulation, is incorrect because FSH itself does not directly trigger ovulation. Choice B, supporting the development of the corpus luteum, is incorrect because it is primarily regulated by LH, not FSH. Choice D, preparing the uterus for pregnancy, is incorrect because FSH primarily acts on the ovaries, not the uterus.

Correct Answer: D

Rationale: The correct answer is D: All of the above. 1. FSH (Follicle-Stimulating Hormone) stimulates the production of sperms in the testes. 2. LH (Luteinizing Hormone) stimulates Leydig cells in the testes to produce testosterone, which is essential for sperm production. 3. Testosterone is crucial for the maintenance of spermatogenesis. Therefore, all three hormones (FSH, LH, Testosterone) play a significant role in the production of sperm. Choice A is incorrect because FSH alone is not solely responsible for sperm production. Choice B is incorrect because LH alone does not directly produce sperm. Choice C is incorrect because while testosterone is essential for sperm production, it is not the only hormone involved.

Correct Answer: C

Rationale: The myometrium is the muscle layer of the uterus responsible for contracting during labor to expel the fetus. This is essential for the birthing process. Choice A is incorrect because supporting the uterine lining is the role of the endometrium. Choice B is incorrect because facilitating implantation is mainly the function of the endometrium. Choice D is incorrect because estrogen secretion is primarily regulated by the ovaries, not the myometrium. Therefore, the correct answer is C as the myometrium's main function is to assist in the expulsion of the fetus during labor.