Which of the following elements of the defecation apparatus requires input from higher centers of the brain in a healthy person under normal conditions?
A) Peristaltic contractions of the sigmoid colon
B) Rectal distention
C) Rectal peristalsis
D) Constriction of external anal sphincter
E) Constriction of internal anal sphincter
Correct Answer:
Verified
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Q8: Which one of the following manometric recordings
Q9: Ileocecal sphincter tone decreases (relaxes) after distention
Q11: Distention of the rectum causes a reflex
Q12: Mass movements are often stimulated after a
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