What structure stores sperm after production?

Correct Answer: C

Rationale: The correct answer is C: Epididymis. After sperm is produced in the testes, it moves to the epididymis for storage and maturation. The epididymis is a coiled tube located on the back of each testicle. It stores sperm until they are ready to be ejaculated. The other choices are incorrect because: A: Vas deferens carries sperm from the epididymis to the urethra, B: Seminal vesicles produce seminal fluid, and D: Urethra is a tube that carries urine and semen out of the body, but does not store sperm.

Correct Answer: A

Rationale: During the follicular phase of the menstrual cycle, the follicle stimulating hormone (FSH) stimulates the growth of a dominant follicle, which eventually leads to ovulation. Ovulation typically occurs around the middle of the menstrual cycle, about 14 days before the start of the next menstrual period. This is when the mature egg is released from the ovary into the fallopian tube. Therefore, the correct answer is A: Follicular phase. Choice B: Luteal phase is incorrect because ovulation precedes the luteal phase. Choice C: Menstrual phase is incorrect as ovulation occurs before menstruation. Choice D: Proliferative phase is incorrect because it occurs after ovulation.

Correct Answer: A

Rationale: The correct answer is A: Ovary. The ovary is responsible for the production of eggs through the process of ovulation. The other choices, B: Fallopian tube, C: Uterus, and D: Cervix, do not produce eggs. The fallopian tube is the site of fertilization, the uterus is where a fertilized egg implants and develops into a fetus, and the cervix is the lower part of the uterus that connects to the vagina. Therefore, the ovary is the only part of the female reproductive system involved in the actual production of eggs.

Correct Answer: B

Rationale: The correct answer is B: Progesterone. Progesterone is the hormone responsible for helping breast tissue prepare for milk production by stimulating the growth of milk-producing glands and promoting the development of ducts. Estrogen supports breast development but is not directly involved in milk production. Prolactin is the hormone that actually stimulates milk production after childbirth. Oxytocin is responsible for releasing milk from the breast during breastfeeding, but it does not help in the preparation of breast tissue for milk production. Therefore, Progesterone is the correct answer as it plays a crucial role in preparing the breast tissue for milk production.

Correct Answer: B

Rationale: The primary function of the placenta is to supply oxygen and nutrients to the fetus. It acts as a bridge between the mother and the fetus, allowing for the exchange of oxygen, nutrients, and waste products. This is crucial for the growth and development of the fetus. The placenta does not secrete estrogen (choice A), as this is primarily produced by the ovaries. It also does not store fetal waste (choice C), as waste is eliminated through the mother's bloodstream. While the placenta does provide some protection against maternal infection (choice D), its main function is nutrient and oxygen exchange.