EPITHELIUM
EPITHELIAL TISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Finger-like extensions of plasma membrane of apical epithelial cells, increase surface area, aid in absorption, exist on every moist epithelial, but most dense in small intestine and kidney
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microvilli
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cilia
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flagella
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hairs
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Explanation:
Detailed explanation-1: -The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.
Detailed explanation-2: -Cells may have slender extensions of the cell membrane to form cilia or the smaller extensions called microvilli. The microscopic microvilli effectively increase the surface area of the cell and are useful for absorption and secretion functions.
Detailed explanation-3: -Microvilli: Microvilli are non-motile (they don’t move) finger-like structures on the surface of epithelial cells that function to increase the cell’s surface area so that it can better absorb substances.
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