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Assuming you mean muscularis, it's a part of the layers found around our Gastrointestinal system and other systems in our body (Reproductive tract etc).

The 4 layers are:

1. mucosa (epithelial layer)

2. submucosa

3. muscularis

4. serosa

Muscularis has both longitudinal and circular muscle layers (in the GI tract this is smooth muscle which is used for peristalisis, haustration, etc). Muscularis layer is contractile and used in the GI tract for moving food through the system, or in the reproductive tract for contractions for birth, etc.

Hope this helps?

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14y ago

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