Match layer of gastrointestinal tract with its microscopic structure Options are

Question

Match layer of gastrointestinal tract with its microscopic structure

Options are submucosa, muscularis, serosa, mucosa

Please match the layer of the gastrointestinal tract with its microscopic structure. 1. Simple columnar epithelium supported by a lamina propria (Click to select) 2. Highly vascular layer of connective tissue (Click to select) + 3. Inner circular and outer longitudinal layers of smooth muscle; the myenteric plexus is between the layers (Click to select) + 4. Areolar connective tissue covered with a layer of simple squamous epithelium (Click to select)

Explanation / Answer

1. Mucosa is inner most to lumen and produces mucous and involved in absorption and secretion.

2.Submucosa is layer of gastrointestinal tract which have a dense connective tissue and contain blood and lymph vessels.

3. Muscularis is layer composed of smooth layers. Circular layer form sphincher. Myentric nerve plexus provide nerve supply to GI.

4. Serosa is viscral peritoneum composed of areolar CT covered with a simple squamous epithelium layer.

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