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Practice Questions

28. What is the primary muscle of respiration?

A. Intercostal muscles
B. Diaphragm ✓
C. Abdominal muscles
D. Sternocleidomastoid
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

27. The voice box is also known as the:

A. Pharynx
B. Larynx ✓
C. Trachea
D. Bronchus
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

26. The exchange of gases (oxygen and carbon dioxide) in the lungs occurs across the:

A. Bronchi
B. Trachea
C. Alveolar-capillary membrane ✓
D. Pleura
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

25. Where do T lymphocytes mature?

A. Bone marrow
B. Spleen
C. Thymus gland ✓
D. Lymph nodes
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

24. What are the first line of defense against pathogens, including skin and mucous membranes?

A. Specific immunity
B. Innate immunity ✓
C. Adaptive immunity
D. Acquired immunity
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

23. The lymphatic system functions to:

A. Transport oxygen
B. Filter blood and produce hormones
C. Return interstitial fluid to the bloodstream ✓
D. Digest fats
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nmdcat.online Anatomy & Physiology -II
Jun 6, 2026

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
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