Question:medium

Given below are two statements.
Statement I - Defecation is an involuntary process that takes place through anal opening guarded by sphincter muscles.
Statement II - Distension, of rectum stimulates pressure sensitive receptors that initiate a neural reflex for egestion.
In light of above statements, select the correct answer from the option given below.

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Key idea: Defecation = Reflex (involuntary) + Control (voluntary via external sphincter). This dual control is a common exam concept.
Updated On: May 8, 2026
  • Both statement I and statement II are correct.
  • Both statement I and statement II are incorrect.
  • Statement I is correct and statement II is incorrect.
  • Statement I is incorrect and statement II is correct.
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The Correct Option is A

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