What is the role of the uterine tube in reproduction?

Correct Answer: C

Rationale: The correct answer is C: Transport eggs from the ovary to the uterus. The uterine tube, also known as the fallopian tube, is responsible for capturing the released egg from the ovary and transporting it to the uterus for potential fertilization. This transportation process is essential for successful reproduction. Storing eggs (choice A) is not the function of the uterine tube. Estrogen secretion (choice B) is primarily carried out by the ovaries and other endocrine glands, not the uterine tube. Supporting implantation of the fertilized egg (choice D) is the role of the uterus, not the uterine tube.

Correct Answer: B

Rationale: The correct answer is B: Secrete seminal fluid. The prostate gland secretes a milky, alkaline fluid that makes up a significant portion of semen. This fluid helps nourish and protect sperm, aiding in their motility and fertility. The other choices are incorrect because: A: The production of sperm primarily occurs in the testes. C: Testosterone is mainly produced by the testes and adrenal glands, not the prostate gland. D: Sperm transportation is facilitated by the vas deferens, not the prostate gland.

Correct Answer: C

Rationale: The correct answer is C: FSH (Follicle-Stimulating Hormone) because it stimulates the production of sperm in males by acting on the testes. FSH is produced by the pituitary gland and plays a crucial role in spermatogenesis. Testosterone (A) is important for male sexual characteristics but does not directly regulate sperm production. Estrogen (B) is a female sex hormone. LH (D) is luteinizing hormone, which plays a role in testosterone production and ovulation in females, but not directly in sperm production.

Correct Answer: B

Rationale: Step 1: The corpus luteum is formed from the ruptured follicle after ovulation. Step 2: It secretes progesterone to maintain the endometrium for potential implantation. Step 3: If fertilization doesn't occur, corpus luteum degenerates, leading to menstruation. Step 4: Thus, the correct answer is B, as it plays a crucial role in endometrial maintenance. Summary: A secretes estrogen, C stimulates ovulation, and D stimulates sperm production, which are not the primary functions of the corpus luteum in the menstrual cycle.

Correct Answer: B

Rationale: The correct answer is B: Support implantation of the fertilized egg. During the menstrual cycle, the uterine lining thickens to provide a nourishing environment for a fertilized egg to implant and develop into a fetus. This is crucial for a successful pregnancy. Choice A is incorrect because the uterine lining supports the implantation of the fertilized egg, not fertilization itself. Choice C is incorrect as the role of the uterine lining is not primarily to protect against infection. Choice D is incorrect as the uterine lining's main function is not to assist with labor but rather to support the early stages of pregnancy.