True about histology of small intestine is A/E
Correct Answer: GALT is absent in lamina propria
Description: C i.e. GALT is absent in lamina propria- Zone of replication (intestinal stem cell niche) is restricted to lower half of intestinal gland (crypts of Lieberkuhn).- Microfold (M) cells are antigen transpoing cells that convey microorganisms & macromolecules from intestinal lumen to Peyer's patches.- Close entero endocrine cells are resting non secretory cells . Whereas open cells secrete CCK, secretin, GIP, motilin, gastrin & ghrelin hormones.- GALT is prominent in lamina propria of small intestine . Secretory IgA is principle molecule of mucosal immunity
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