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Which of the following are functions of the liver? (Select all that apply.)

Producing glucagon

Synthesis of bile

Metabolism of proteins, fats, carbohydrates

Detoxifying drugs

Storage of fat-soluble vitamins

Answer and Explanation

Correct Answer : B,C,D,E

A. Producing glucagon: Glucagon is produced by the alpha cells of the pancreas, not the liver.

B. Synthesis of bile: The liver synthesizes bile, which is stored in the gallbladder and aids in fat digestion.

C. Metabolism of proteins, fats, carbohydrates: The liver plays a central role in metabolism, processing amino acids, lipids, and glucose.

D. Detoxifying drugs: The liver detoxifies substances, including medications and alcohol, converting them into less harmful forms.

E. Storage of fat-soluble vitamins: The liver stores vitamins A, D, E, and K, which are fat-soluble and essential for various functions.

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Correct Answer is C

Explanation

A. Defecation: This is the elimination of feces from the rectum, not the process of moving food through the GI tract.

B. Emulsification: This refers to breaking down fat into smaller droplets (done by bile), not the movement of food.

C. Peristalsis: Peristalsis is the rhythmic muscular contraction that propels food through the digestive tract.

D. Mastication: This is chewing, a mechanical process that occurs in the mouth before food enters the esophagus.

A. Epiglottis B. Tonsils C. Uvula D. Appendix

Correct Answer is A

Explanation

A. Epiglottis: The epiglottis is a flap of cartilage that covers the laryngeal opening during swallowing to prevent food or liquid from entering the airway.

B. Tonsils: Tonsils are lymphatic tissues in the pharynx that help trap pathogens, not prevent aspiration.

C. Uvula: The uvula helps close off the nasopharynx, not the trachea, during swallowing.

D. Appendix: The appendix is a blind-ended tube attached to the cecum; it plays no role in swallowing or airway protection.

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Which of the following are functions of the liver? (Select all that apply.)

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