Question 1

Which of the following best describes the difference between an endocrine gland and an exocrine gland?

Accepted Answer

Endocrine glands secrete hormones into the bloodstream to target distant organs, while exocrine glands release substances through ducts to the outside of the body or into body cavities.

Question 2

Which hormone is released by the posterior pituitary and is responsible for stimulating uterine contractions during childbirth?

Accepted Answer

Oxytocin

Question 3

A patient has low blood calcium levels. Which hormone is most likely to be released to increase blood calcium, and from which gland?

Accepted Answer

Parathyroid hormone (PTH) from the parathyroid gland

Question 4

Which of the following hormones is released by the adrenal cortex and is involved in the stress response?

Accepted Answer

Cortisol

Question 5

Which hormone is responsible for regulating sleep cycles and is secreted by the pineal gland?

Accepted Answer

Melatonin

Question 6

Which of the following hormones is released by the anterior pituitary and stimulates the thyroid gland to produce thyroid hormones?

Accepted Answer

Thyroid-stimulating hormone (TSH)

Question 7

Which hormone is released by the pancreas and lowers blood glucose levels by promoting glucose uptake into cells?

Accepted Answer

Insulin

Question 8

Which of the following is a second messenger involved in hormone signaling?

Accepted Answer

cAMP

Question 9

Which hormone is released by the anterior pituitary and stimulates milk production after childbirth?

Accepted Answer

Prolactin

Question 10

Which of the following hormones is released by the adrenal medulla and is involved in the 'fight or flight' response?

Accepted Answer

Epinephrine (adrenaline)

Question 11

Which hormone is released by the ovaries and promotes the development of female secondary sexual characteristics?

Accepted Answer

Estrogen

Question 12

Which hormone is released by the testes and is responsible for male secondary sexual characteristics?

Accepted Answer

Testosterone

Question 13

Which of the following is NOT a factor that determines the degree of activation of a target cell when a hormone binds to its receptor?

Accepted Answer

The size of the target cell

Question 14

Which endocrine gland gradually shrinks and is replaced with connective and fatty tissue as we age, leading to decreased hormone production and immune function?

Accepted Answer

Thymus

Question 15

Which hormone is released by the pancreas and raises blood glucose levels by promoting the breakdown of glycogen in the liver?

Accepted Answer

Glucagon

Question 16

Which hormone is released by the anterior pituitary and stimulates growth in children and muscle development in adults?

Accepted Answer

Growth hormone (somatotropin)

Question 17

Which hormone is released by the adrenal cortex and increases sodium reabsorption in the kidney tubules?

Accepted Answer

Aldosterone

Question 18

Which hormone is released by the thyroid gland and lowers calcium levels in the blood by promoting calcium deposition in bone?

Accepted Answer

Calcitonin

Question 19

Which hormone is released by the anterior pituitary and stimulates the adrenal cortex to release its hormones?

Accepted Answer

Adrenocorticotropic hormone (ACTH)

Question 20

Which hormone is released by the pineal gland and declines with age, affecting sleep cycles?

Accepted Answer

Melatonin

Endocrine System: Hormones, Glands, and Regulation

Guida di studio - Domande di pratica

Study guide - Flashcard