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.