Practice Questions

29. The process of moving air into and out of the lungs is called:

A. Gas exchange

B. Cellular respiration

C. Ventilation ✓

D. Perfusion

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28. What is the primary muscle of respiration?

A. Intercostal muscles

B. Diaphragm ✓

C. Abdominal muscles

D. Sternocleidomastoid

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27. The voice box is also known as the:

A. Pharynx

B. Larynx ✓

C. Trachea

D. Bronchus

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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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25. Where do T lymphocytes mature?

A. Bone marrow

B. Spleen

C. Thymus gland ✓

D. Lymph nodes

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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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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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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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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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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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Practice Questions

29. The process of moving air into and out of the lungs is called:

28. What is the primary muscle of respiration?

27. The voice box is also known as the:

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

25. Where do T lymphocytes mature?

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

23. The lymphatic system functions to:

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:

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