MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A muscular opening at the end of the rectum through which solid waste (feces) is eliminated from the body
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rectum
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anus
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esophagus
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large intestine
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Explanation:
Detailed explanation-1: -The anus marks the exit point of the digestive tract; it’s where poop leaves the body.
Detailed explanation-2: -Stool enters the rectum (2) from the colon (1). 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”.
Detailed explanation-3: -Defecation Eliminates Waste From the Body The body expels waste products from digestion through the rectum and anus. This process, called defecation, involves contraction of rectal muscles, relaxation of the internal anal sphincter, and an initial contraction of the skeletal muscle of the external anal sphincter.
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