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Inessa05 [86]
3 years ago
7

Which of these structures is found in the stomach but nowhere else in the alimentary canal?a. a circular muscle layerb. mucus-fo

rming cellsc. a lining of columnar epotheliumd. an onblique muscle layer
Biology
1 answer:
Arada [10]3 years ago
6 0

Answer:

d. an onblique muscle layer

Explanation:

The alimentary canal has four main layers:

Mucosa (innermost layer which surrounds the lumen), submucosa (connective tissue with blood vessels, lymphatics, and nerves), muscular layer, serosa ( outermost layer of connective tissue).

Muscular layer is subdivided into:

• the inner- arranged in circular rings, prevents food from travelling backward  

•  outer layer- arranged longitudinally,  shortens the tract.

The stomach has an extra layer called inner oblique muscular layer (churning function).

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