Also called the mammary gland, two of these are located at the chest level and produce milk for the newborn baby.

Correct Answer: A

Rationale: The correct answer is A: Breast. The mammary glands, also known as breasts, are located at the chest level and produce milk for the newborn baby. This is a basic anatomical fact. B: Ovary is incorrect as ovaries are reproductive organs in females that produce eggs, not milk. C: Cervix is incorrect as it is a part of the female reproductive system that connects the vagina to the uterus, not involved in milk production. D: Zygote is incorrect as it is the initial cell formed from the fusion of sperm and egg during fertilization, not related to milk production.

Correct Answer: B

Rationale: Step 1: The epididymal duct is a coiled tube located on the posterior surface of the testis. Step 2: It continues as the deferent duct (vas deferens) which is responsible for transporting sperm from the epididymis to the ejaculatory duct. Step 3: Therefore, choice B is correct as the epididymal duct indeed continues as the deferent duct. Summary: A: Incorrect - The epididymal duct is not located within the testis. C: Incorrect - The testicular efferent ducts are separate from the epididymal duct. D: Incorrect - The epididymal duct is considered part of the male reproductive system within the scrotum, not outside it.

Correct Answer: C

Rationale: Step-by-step rationale: 1. The prostate is an accessory gland because it produces and secretes fluid that nourishes and protects sperm. 2. It is not located under the urinary bladder (A) but surrounds the initial segment of the urethra (B). 3. The prostate does not secrete androgenic hormones (D); instead, it secretes prostate-specific antigen (PSA) and enzymes. 4. Thus, the correct answer is C because it accurately describes the function of the prostate as an accessory gland of the male reproductive system.

Correct Answer: B

Rationale: Step-by-step rationale: 1. Testosterone is a male sex hormone responsible for developing secondary sexual characteristics. 2. Voice deepening is a well-known secondary sexual characteristic influenced by testosterone. 3. Testosterone affects the larynx, causing vocal cords to lengthen and thicken, leading to a deeper voice. 4. Skeleton development is mainly influenced by growth hormones, not testosterone. 5. Secretory modifications in spermatogenic epithelium are regulated by other hormones like FSH and LH, not testosterone. 6. The distribution of excess fat is influenced by various factors like genetics and metabolism, not specifically testosterone. Summary: Voice deepening (choice B) is the correct answer as it is a well-known secondary sexual characteristic influenced by testosterone. Choices A, C, and D are incorrect as they are not directly influenced by testosterone in the context of secondary sexual characteristics.

Correct Answer: A

Rationale: The correct answer is A: blood vessels. The medullar area of the ovary contains blood vessels to supply oxygen and nutrients to the ovarian tissue. This is essential for the nourishment and function of the ovary. Choice B, vegetative (autonomic) nerve fibers, is incorrect as the ovary primarily receives autonomic innervation from the sympathetic and parasympathetic nervous systems, which are not specifically located in the medullar area. Choice C, nerve fibers, is also incorrect as nerve fibers are mainly found in the ovarian cortex rather than the medulla. Choice D, lymphatic vessels, is incorrect as the lymphatic vessels are responsible for draining lymph fluid and are not typically located in the medullar area of the ovary.