ANATOMY

GENERAL ANATOMY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Villi in the small intestine:
A
Increase the surface area of the organ and absorbs nutrients
B
Absorb nutrients and lymph
C
Absorb the blood and increase the surface area of the organ
D
Absorbs blood and lymph
Explanation: 

Detailed explanation-1: -Villi are hair-like structures present on the surface of the small intestine. They increase the surface area for absorption of nutrients. 90% of the digestion and absorption of food occurs in the small intestine and the rest takes place in the stomach and large intestine.

Detailed explanation-2: -Villi are small finger-like projections present in the inner lining of the small intestine. They increase the surface area of small intestine by providing more area for efficient absorption of nutrients. The presence of villi and micro-villi gives a brush border appearance.

Detailed explanation-3: -The lining of the small intestinal mucosa is very highly specialized for maximizing digestion and absorption of nutrients. The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.

Detailed explanation-4: -Villi: The folds form numerous tiny projections which stick out into the open space inside your small intestine (or lumen), and are covered with cells that help absorb nutrients from the food that passes through.

Detailed explanation-5: -Villi increase the surface area for absorption and villi epithelium helps in the absorption of digested food. The surface of the villi absorbs the amino acids and glucose to pass them into the blood system.

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