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The esophagus is a muscular tube that:

A.

Stores undigested pieces of food

B.

Transports food from the pharynx to the stomach

C.

Absorbs nutrients

D.

Breaks down proteins

Answer and Explanation

The Correct Answer is B

A. Stores undigested pieces of food: The stomach, not the esophagus, is responsible for storing food temporarily.

B. Transports food from the pharynx to the stomach: The esophagus is a muscular tube that uses peristalsis to move food from the pharynx to the stomach.

C. Absorbs nutrients: Nutrient absorption occurs mainly in the small intestine, not the esophagus.

D. Breaks down proteins: Protein digestion begins in the stomach via pepsin, not in the esophagus.

 


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Related Questions

Correct Answer is C

Explanation

A. Gallbladder: The gallbladder stores and concentrates bile but does not produce it.

B. Spleen: The spleen is part of the immune system and blood filtration, not digestion.

C. Liver: The liver produces bile, which helps emulsify fats during digestion.

D. Pancreas: The pancreas produces digestive enzymes and insulin, not bile.

Correct Answer is A

Explanation

A. Colon: The sigmoid colon is the S-shaped terminal portion of the large intestine, connecting to the rectum.

B. Esophagus: The esophagus is part of the upper digestive tract, not the colon.

C. Small intestine: The sigmoid colon is not a part of the small intestine.

D. Stomach: The stomach is part of the upper GI tract and does not include the sigmoid colon.

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