Question

What controls the exit of stools from the body?​

Answer 1

Explanation:

There are two major muscles the stool must pass through to exit the body, the internal sphincter muscle and the external sphincter muscle (4). The internal sphincter muscle is “involuntary”. It automatically relaxes and opens at the top of the anal canal to allow stool to pass through.

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Answer 2

Explanation

There are two major muscles the stool must pass through to exit the body, the internal sphincter muscle and the external sphincter muscle (4). The internal sphincter muscle is “involuntary”. It automatically relaxes and opens at the top of the anal canal to allow stool to pass through.

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