Question

What will happen if the lining X shown in the figure of transverse section of gut is smooth instead of having such foldings​

Answer 1

Answer:

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Answer 2

Surface area of absorption is reduced if lining X shown in the figure of the transverse section of the gut is smooth instead of having such folding.

Explanation:

• The mucosa consists of epithelium an underlying loose connective tissue layer called lamina propria and a thin smooth muscle layer called the muscularis mucosa.
• In certain regions the mucosa develops folds that increase the surface area.
• Certain cells in the mucosa secrete mucus, digestive enzymes and hormones.
• 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.