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In which layer of the alimentary canal, the glands are present in duodenum?(a) Sub-mucosa(b) Muscularis(c) Mucosa(d) SerosaThe question was posed to me in an internship interview.Query is from Digestion of Food-1 in section Digestion and Absorption of Biology – Class 11

Answer»

Right choice is (a) Sub-mucosa

Easiest explanation: In the duodenum, GLANDS are present in the sub-mucosa. The sub-mucosal LAYER is FORMED of LOOSE connective tissue CONTAINING nerves, blood, and lymph vessels.



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