OESOPHAGUS STOMACH
BODY OF STOMACH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What normally causes the defecation reflex?
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excess bacteria
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illness
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presence of feces in the rectum
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hunger
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Explanation:
Detailed explanation-1: -The defecation reflex occurs when the internal anal sphincter relaxes and the external anal sphincter contracts. The rectoanal inhibitory reflex (RAIR) is an involuntary internal anal sphincter relaxation in response to rectal distention. After the defecation reflex is triggered, you can either delay or defecate.
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