$$\text{Angiotensinogen} \xrightarrow{\text{Renin}} \text{Angiotensin I} \xrightarrow{\text{ACE}} \text{Angiotensin II}$$

Question 1

Which hormone is synthesized by the hypothalamus and released by the posterior pituitary gland to regulate water balance in the body?

Accepted Answer

Antidiuretic hormone (ADH)

Question 2

A patient presents with abnormally high blood calcium levels. Which hormone is most likely underproduced?

Accepted Answer

Calcitonin

Question 3

Which of the following best describes the function of the hypophyseal portal system?

Accepted Answer

It allows regulatory hormones from the hypothalamus to reach the anterior pituitary before entering general circulation.

Question 4

Which hormone is responsible for stimulating the release of glucose from the liver during the alarm phase of the general adaptation syndrome?

Accepted Answer

Glucagon

Question 5

A patient with Addison’s disease has insufficient production of corticosteroids. Which part of the adrenal gland is primarily affected?

Accepted Answer

Adrenal cortex

Question 6

Which hormone produced by the pineal gland helps regulate circadian rhythms?

Accepted Answer

Melatonin

Question 7

Which of the following is a synergistic effect in hormone interactions?

Accepted Answer

Growth hormone and thyroid hormones both promoting growth

Question 8

Which hormone is secreted by the heart in response to excessive blood volume and acts to reduce blood pressure?

Accepted Answer

Natriuretic peptide

Question 9

Which hormone is released by the kidneys to stimulate red blood cell production?

Accepted Answer

Erythropoietin

Question 10

A patient with hyperthyroidism is likely to experience which of the following symptoms?

Accepted Answer

Increased body temperature

Question 11

Which hormone is secreted by beta cells in the pancreas and lowers blood glucose levels?

Accepted Answer

Insulin

Question 12

Which of the following equations correctly represents the conversion of angiotensinogen to angiotensin II?

Accepted Answer

$$	ext{Angiotensinogen} \xrightarrow{	ext{Renin}} 	ext{Angiotensin I} \xrightarrow{	ext{ACE}} 	ext{Angiotensin II}$$

Question 13

Which hormone is released by the thymus and is essential for the development and maturation of lymphocytes?

Accepted Answer

Thymosin

Question 14

Which hormone produced by adipose tissue regulates appetite and maintains normal levels of GnRH?

Accepted Answer

Leptin

Question 15

Which of the following best describes the alarm phase of the general adaptation syndrome?

Accepted Answer

Immediate response to stress, directed by the sympathetic division of the ANS

Question 16

Which hormone is secreted by the zona glomerulosa of the adrenal cortex and regulates sodium and potassium balance?

Accepted Answer

Aldosterone

Question 17

Which hormone interaction is described as one hormone being required for another to produce its effect?

Accepted Answer

Permissive effect

Question 18

Which hormone is secreted by alpha cells in the pancreas and increases blood glucose levels?

Accepted Answer

Glucagon

Question 19

Which of the following is a direct effect of parathyroid hormone (PTH)?

Accepted Answer

Stimulates osteoclasts to release calcium from bone

Question 20

Which hormone is released by the corpus luteum after ovulation and is essential for maintaining pregnancy?

Accepted Answer

Progesterone

Endocrine System: Organs, Hormones, and Regulation

Guida di studio - Domande di pratica