What is the role of the fimbriae in the female reproductive system?

Correct Answer: B

Rationale: The correct answer is B: Capture the egg after ovulation. Rationale: 1. Fimbriae are finger-like projections at the end of the fallopian tube. 2. After ovulation, the fimbriae help in capturing the released egg from the ovary. 3. The captured egg is then transported to the fallopian tube for potential fertilization. Summary: A: Incorrect - Fimbriae do not transport the egg from the ovary to the uterus. C: Incorrect - Fimbriae do not support fertilization directly. D: Incorrect - Fimbriae do not release hormones.

Correct Answer: B

Rationale: The correct answer is B: Secrete seminal fluid. Seminal vesicles produce and secrete seminal fluid, which is a major component of semen. This fluid provides nutrients and protection for sperm, aiding in their motility and survival. Storing sperm (choice A) is primarily the function of the epididymis. Testosterone production (choice C) occurs in the testes, while sperm production (choice D) takes place in the testes as well. Therefore, choice B is the correct answer as seminal vesicles specifically contribute to the production of seminal fluid.

Correct Answer: D

Rationale: The primary function of the uterine tubes (fallopian tubes) is to transport eggs from the ovary to the uterus for potential fertilization. This process involves capturing an egg released from the ovary, providing a site for fertilization by sperm, and conducting the fertilized egg (zygote) to the uterus for implantation. Choice A is incorrect because sperm are not transported through the fallopian tubes. Choice B is incorrect as the fallopian tubes do not store eggs but rather facilitate their movement. Choice C is incorrect as fertilization occurs in the fallopian tubes but they do not actively support the process.

Correct Answer: B

Rationale: The correct answer is B: Stimulate uterine contractions. Oxytocin is a hormone that plays a key role in initiating and maintaining labor by stimulating uterine contractions. It acts on the smooth muscles of the uterus to promote the rhythmic contractions necessary for childbirth. Oxytocin also helps with the ejection of milk during breastfeeding but its primary role in childbirth is to stimulate uterine contractions. Incorrect choices: A: Inhibit uterine contractions - This is incorrect as oxytocin actually stimulates, not inhibits, uterine contractions. C: Increase milk production - While oxytocin does play a role in milk ejection during breastfeeding, its primary role in childbirth is to stimulate uterine contractions. D: Prepare the cervix for dilation - While oxytocin may contribute to cervical dilation during labor, its primary role is in stimulating uterine contractions.

Correct Answer: B

Rationale: The correct answer is B: Control the development of male secondary sexual characteristics. Testosterone plays a crucial role in the development of traits like facial hair, deep voice, muscle growth, and bone density in males. It is responsible for the physical characteristics that distinguish males from females. Choices A, C, and D are incorrect as testosterone primarily influences male sexual characteristics and does not directly impact sperm production, menstrual cycle regulation, or seminal fluid secretion.