What do the following hormones have in common: growth hormone, cortisol, and epinephrine? All:

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Endocrine System Practice Questions Questions

Question 1 of 5

What do the following hormones have in common: growth hormone, cortisol, and epinephrine? All:

Correct Answer: B

Rationale: Step-by-step rationale for why choice B is correct: 1. Growth hormone, cortisol, and epinephrine all raise blood glucose levels. 2. Growth hormone promotes glucose production, cortisol increases blood sugar through gluconeogenesis, and epinephrine stimulates glycogen breakdown. 3. The increase in blood glucose is essential for providing energy during stress or physical activity. 4. None of the other choices align with all three hormones' functions, making choice B the correct answer. Summary: Choices A and D are incorrect because not all three hormones are secreted by the adrenal glands or are steroids. Choice C is incorrect as these hormones do not suppress gluconeogenesis; instead, they promote processes that raise blood glucose levels.

Question 2 of 5

What gland is located just superior to the kidneys?

Correct Answer: B

Rationale: The correct answer is B: Adrenal. The adrenal glands are located just superior to the kidneys. They are responsible for producing important hormones such as cortisol and adrenaline. The pituitary gland (choice A) is located at the base of the brain, the pancreas (choice C) is located in the abdomen, and the ovaries (choice D) are located in the pelvic region. Therefore, choices A, C, and D are incorrect as they do not correspond to the anatomical location specified in the question.

Question 3 of 5

The pituitary hormone that stimulates the male testes to produce sperm and stimulates the development of the follicle in the female on a monthly cycle is:

Correct Answer: D

Rationale: The correct answer is D: follicle-stimulating hormone (FSH). FSH is produced by the pituitary gland and plays a crucial role in both male and female reproductive systems. In males, FSH stimulates the testes to produce sperm. In females, FSH stimulates the development of ovarian follicles, which contain eggs. This hormone is essential for the process of ovulation and the menstrual cycle. A: Growth hormone is not directly involved in the reproductive system but rather promotes overall growth and development. B: Luteinizing hormone (LH) is responsible for ovulation and the production of testosterone in males. It does not directly stimulate sperm production or follicle development. C: Prolactin is primarily involved in milk production and has no direct role in sperm production or follicle development.

Question 4 of 5

The only endocrine glands that lay dormant during childhood to activate at puberty are the:

Correct Answer: D

Rationale: The correct answer is D because the ovaries and testes are the only endocrine glands that are dormant during childhood and activate at puberty to produce sex hormones. The ovaries produce estrogen and progesterone in females, while the testes produce testosterone in males. This activation is essential for the development of secondary sexual characteristics and reproductive functions. Pancreas (choice A), adrenal glands (choice B), and thyroid gland (choice C) are all active during childhood and do not specifically activate at puberty. The pancreas regulates blood sugar levels, the adrenal glands produce hormones like cortisol, and the thyroid gland regulates metabolism. Hence, choices A, B, and C are incorrect in the context of endocrine glands that lay dormant during childhood to activate at puberty.

Question 5 of 5

An organ that can be classified as both an endocrine and exocrine gland is the

Correct Answer: C

Rationale: The correct answer is C: pancreas. The pancreas is classified as both an endocrine gland, producing hormones like insulin and glucagon, and an exocrine gland, secreting digestive enzymes into the small intestine. This dual functionality makes it unique among the other options. The hypothalamus (A) is primarily an endocrine gland involved in hormone regulation, while the thymus gland (B) is solely an endocrine gland responsible for T-cell maturation. The pituitary gland (D) is also an endocrine gland that regulates various bodily functions but does not have exocrine functions like the pancreas.

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