The shedding of the lining of the uterus along with some blood once a month. Also called a monthly period:

Correct Answer: C

Rationale: The correct answer is C: Menstruation. Menstruation is the process where the lining of the uterus sheds along with some blood once a month. This occurs in females who are not pregnant. Gestation (A) refers to the period of development of a baby in the womb. Conception (B) is the fertilization of an egg by sperm. Ovulation (D) is the release of an egg from the ovary. Menstruation best describes the shedding of the uterine lining and blood during a monthly period.

Correct Answer: B

Rationale: The correct answer is B: lobules, delineated by connective septa. The testicle is structurally organized into lobules separated by connective tissue septa. Each lobule contains seminiferous tubules where sperm production occurs. This organization allows for efficient production and transport of sperm. Incorrect choices: A: Intratesticular spermatic ducts - Incorrect, as the testicle contains seminiferous tubules, not spermatic ducts. C: The cortical zone, in the center - Incorrect, as the testicle structure does not have a defined cortical zone. D: The medullar zone, at the periphery - Incorrect, as the medullary zone is not at the periphery but rather towards the center of the testicle.

Correct Answer: A

Rationale: Step-by-step rationale for the correct answer (A): 1. The prostate gland is an exocrine gland because it secretes its products through ducts onto an epithelial surface. 2. It is a paired organ, with two lobes located above the urethra and below the bladder. 3. The prostate secretes a fluid that contributes to the seminal fluid, not semen itself. 4. The prostate is vascularized by branches of the internal iliac artery, not the entire gland. Therefore, the correct statement is that the prostate is an exocrine glandular organ (Choice A).

Correct Answer: B

Rationale: Step 1: LH (luteinizing hormone) is produced by the pituitary gland and plays a key role in stimulating the Leydig cells in the testes to produce testosterone. Step 2: Testosterone secretion is directly controlled by the LH through this stimulation. Step 3: FSH (follicle-stimulating hormone) is involved in sperm production, not testosterone secretion. Step 4: Corticoadrenal hormones are related to stress response, not testosterone regulation. Step 5: Negative feedback from the posterior pituitary does not directly control testosterone secretion. Therefore, the correct answer is B (the LH) as it directly influences testosterone production.

Correct Answer: B

Rationale: The correct answer is B because ovarian follicles are actually present in the ovary since birth. They are formed during fetal development and remain in a dormant state until puberty. Choice A is incorrect because follicles are located in the medullary area of the ovary, not the cortical area. Choice C is incorrect because follicles are formed before puberty. Choice D is incorrect because follicles do not go through stages of evolution but rather stages of development.