MCQs

11212 questions found

Practice Questions

22. Which cells are responsible for destroying virus-infected cells and cancer cells?

A. B lymphocytes

B. Plasma cells

C. T lymphocytes (Cytotoxic T cells) ✓

D. Macrophages

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

21. Which type of immunity involves the production of antibodies by B lymphocytes?

A. Innate immunity

B. Cellular immunity

C. Humoral immunity ✓

D. Passive immunity

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

20. The outermost layer of a blood vessel (artery or vein) is called the:

A. Tunica intima

B. Tunica media

C. Tunica externa (adventitia) ✓

D. Endothelium

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

19. Blood pressure is typically measured in which artery?

A. Carotid artery

B. Femoral artery

C. Brachial artery ✓

D. Radial artery

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

18. What is the primary function of capillaries in the circulatory system?

A. Carry blood away from the heart

B. Carry blood towards the heart

C. Facilitate exchange of nutrients, gases, and wastes ✓

D. Regulate blood pressure

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

17. The bicuspid valve is also known as the:

A. Aortic valve

B. Pulmonary valve

C. Mitral valve ✓

D. Tricuspid valve

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

16. Which blood vessel carries deoxygenated blood from the right ventricle to the lungs?

A. Aorta

B. Pulmonary artery ✓

C. Pulmonary vein

D. Vena cava

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

15. The SA node (sinoatrial node) is known as the heart’s natural pacemaker because it:

A. Relays impulses to the ventricles

B. Initiates the electrical impulse for contraction ✓

C. Regulates blood pressure

D. Filters blood

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

14. What is the approximate pH range of normal human blood?

A. 6.5-6.9

B. 7.0-7.3

C. 7.35-7.45 ✓

D. 7.5-7.8

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

13. Which of the following is the largest lymphatic organ in the body?

A. Thymus

B. Tonsil

C. Spleen ✓

D. Lymph node

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

12. The universal blood recipient type is:

A. O negative

B. A positive

C. AB positive ✓

D. B negative

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

11. Which blood component is primarily responsible for oxygen transport?

A. Platelets

B. Leukocytes

C. Erythrocytes ✓

D. Plasma

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

10. The cells in the testes that produce testosterone are called:

A. Sertoli cells

B. Spermatogonia

C. Leydig cells (interstitial cells) ✓

D. Sustentacular cells

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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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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nmdcat.online Anatomy & Physiology -II

Jun 6, 2026

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MCQs

Practice Questions

22. Which cells are responsible for destroying virus-infected cells and cancer cells?

21. Which type of immunity involves the production of antibodies by B lymphocytes?

20. The outermost layer of a blood vessel (artery or vein) is called the:

19. Blood pressure is typically measured in which artery?

18. What is the primary function of capillaries in the circulatory system?

17. The bicuspid valve is also known as the:

16. Which blood vessel carries deoxygenated blood from the right ventricle to the lungs?

15. The SA node (sinoatrial node) is known as the heart’s natural pacemaker because it:

14. What is the approximate pH range of normal human blood?

13. Which of the following is the largest lymphatic organ in the body?

12. The universal blood recipient type is:

11. Which blood component is primarily responsible for oxygen transport?

10. The cells in the testes that produce testosterone are called:

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:

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