Practice Questions

9. Oxytocin, a hormone from the posterior pituitary, plays a role in:

A. Milk production

B. Uterine contractions during childbirth ✓

C. Growth of long bones

D. Regulation of blood pressure

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8. The hypothalamic-pituitary axis is a critical feedback loop controlling many endocrine glands. Which gland is often referred to as the “master gland”?

A. Thyroid gland

B. Adrenal gland

C. Pituitary gland ✓

D. Pancreas

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7. Which part of the adrenal gland produces epinephrine and norepinephrine?

A. Adrenal cortex

B. Adrenal medulla ✓

C. Zona glomerulosa

D. Zona fasciculata

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6. Parathyroid hormone (PTH) plays a crucial role in regulating the blood levels of what ion?

A. Sodium

B. Potassium

C. Calcium ✓

D. Chloride

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5. Glucagon is secreted by the alpha cells of the pancreas and has what effect on blood glucose?

A. Decreases it

B. Increases it ✓

C. Has no effect

D. Regulates calcium

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4. The primary function of insulin, secreted by the pancreas, is to:

A. Raise blood glucose levels

B. Lower blood glucose levels ✓

C. Stimulate protein synthesis

D. Increase fat breakdown

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3. Which endocrine gland is responsible for regulating basal metabolic rate?

A. Pancreas

B. Thyroid gland ✓

C. Adrenal gland

D. Parathyroid gland

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2. The adrenal cortex produces hormones such as cortisol and aldosterone. These are classified as:

A. Catecholamines

B. Steroid hormones ✓

C. Peptide hormones

D. Amine hormones

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1. Which hormone is released by the posterior pituitary gland and causes water reabsorption in the kidneys?

A. Oxytocin

B. Antidiuretic Hormone (ADH) ✓

C. Growth Hormone

D. Prolactin

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The enzyme responsible for breaking down dietary proteins into smaller peptides and amino acids in the stomach is:

A. Amylase

B. Lipase

C. Pepsin ✓

D. Trypsin

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Practice Questions

9. Oxytocin, a hormone from the posterior pituitary, plays a role in:

8. The hypothalamic-pituitary axis is a critical feedback loop controlling many endocrine glands. Which gland is often referred to as the “master gland”?

7. Which part of the adrenal gland produces epinephrine and norepinephrine?

6. Parathyroid hormone (PTH) plays a crucial role in regulating the blood levels of what ion?

5. Glucagon is secreted by the alpha cells of the pancreas and has what effect on blood glucose?

4. The primary function of insulin, secreted by the pancreas, is to:

3. Which endocrine gland is responsible for regulating basal metabolic rate?

2. The adrenal cortex produces hormones such as cortisol and aldosterone. These are classified as:

1. Which hormone is released by the posterior pituitary gland and causes water reabsorption in the kidneys?

The enzyme responsible for breaking down dietary proteins into smaller peptides and amino acids in the stomach is:

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