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Example Questions
Example Question #1 : Understanding The Lower Digestive Tract: Small Intestine To Rectum
What is the purpose of microvilli in the small intestine?
Possible Answers:
Increase surface area
Decrease contracility
Increase contractility
Decrease surface area
Correct answer:
Increase surface area
Explanation:
Microvilli are found at the microscopic level within the digestive tract to help increase surface area. The increased surface area aids in the absorption of nutrients as they pass through the small intestine. Microvilli allow for folds in the digestive tract, which in turn, increase the amount of area available for nutrient absorption.
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