NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Human Physiology-Digestion and Absorption Revision (Page 7 of 23)

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Differences between Small intestine and Large intestine

Differences between Small intestine and Large intestine

Differences between Small intestine and Large intestine

Sn.

Feature

Small Intestine

Large Intestine

1.

Fixity

Greater part is freely mobile

Greater part is fixed

2.

Taeniae coli

Absent

Present

3.

Sacculations or

haustra

Absent

Present

4.

Villi

Present

Absent

5.

Peyer’s patches

Present in ileum

Absent

6.

Effects of

infection

Diarrhea (heavy water loss)

Dysentery (mucus or blood

loss)

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Histology of GIT

In general the wall of GIT has following four layers;

  1. Mucosa; is innermost consisting of

    • Surface epithelial layer; is in contact with the lumen of GIT. The epithelial cells at their edges are tightly bound to each other. Epithelium is mainly stratified squamous epithelium. In stomach and intestine cells are tall columnar. The shape of the cell changes depending upon the function of the part of GIT. It forms gastric glands in the stomach, and villi and intestinal glands in small i

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