Multiple choice

In which of the following organs digestion does not occurs?

  1. Anus

  2. Stomach

  3. Small intestine

  4. Mouth

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The anus is the last part of the digestive tract. It is a 2-inch long canal consisting of the pelvic floor muscles and the two anal sphincters (internal and external). The anus is surrounded by sphincter muscles that are important in allowing control of stool. The pelvic floor muscle creates an angle between the rectum and the anus that stops stool from coming out when it is not supposed to. The internal sphincter is always tight, except when stool enters the rectum.

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