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Which of the following structures allow the stomach to expand?

A.

Chief cells

B.

Microvilli

C.

Villi

D.

Rugae

Answer and Explanation

The Correct Answer is D

A. Chief cells: These are gastric gland cells that secrete pepsinogen, not involved in stomach expansion.

B. Microvilli: These are microscopic extensions in the small intestine for nutrient absorption, not expansion.

C. Villi: Like microvilli, villi are found in the small intestine, not the stomach.

D. Rugae: Rugae are folds in the stomach lining that allow it to expand when filled with food or liquid.


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Related Questions

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.

Correct Answer is A

Explanation

A. Urinary tract infection: UTIs often cause urine to appear cloudy, dark, and malodorous due to the presence of bacteria, white blood cells, and inflammatory byproducts.

B. Urinary incontinence: Incontinence refers to loss of bladder control, not urine composition.

C. Urinary retention: Retention means incomplete bladder emptying; while it can lead to infection, it doesn’t directly cause cloudy, smelly urine unless infection is present.

D. Urinary frequency: This is a symptom of a urinary disorder but does not change the appearance or smell of the urine by itself.

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