Which of the following structures allow the stomach to expand?
Chief cells
Microvilli
Villi
Rugae
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 D
Explanation
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.
Correct Answer is D
Explanation
A. Causes a deficiency of intrinsic factor and pernicious anemia: Intrinsic factor is produced in the stomach, not the liver. Its deficiency leads to pernicious anemia.
B. Causes lactose intolerance: Lactose intolerance is due to lactase deficiency in the small intestine.
C. Causes gastric reflux: Gastroesophageal reflux is typically due to lower esophageal sphincter dysfunction.
D. Causes blood drug levels to reach toxic levels: The liver metabolizes drugs. Impaired hepatic function reduces drug clearance, leading to accumulation and potential toxicity.
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