Introduction
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- Main difference between the mucosa of the small intestine and the
large intestine - mucosa of the large intestine is devoid of villi.
- It has numerous crypts which extend deeply and open onto a flat lumenal
surface.
- Mucus-secreting goblet cells are also much more abundant in the colonic
epithelium than in the small gut.
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Structure of the Colon
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bundles of the outer longitudinal muscle are grouped into 3 thick
bands- taeniae of the colon
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inner circular muscle coat
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taniae are shorter than underlying circular muscle coat giving rise
to haustra
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