Home > Topics > Correction to AIIMS May 11 Q no. 22 Nov 08 Q no. 24 by Amit Ashish

Correction to AIIMS May 11 Q no. 22 Nov 08 Q no. 24 by Amit Ashish

April 20, 2012

May 2011- Q no. 22  Nov 08 Q no. 24

Maximum postprandial motility is seen in:
a)      Ascending colon
b)      Transverse colon
c)      Descending colon
d)      Sigmoid colon
Ans is ‘d’ i.e. Sigmoid colon

Ref: Sabiston 18/e p1362
Sabiston writes- “The colon responds to the ingestion of a meal with
an increase in the number of migrating and nonmigrating long spike
bursts of potentials peaking at 15 minutes after the meal. This
increase in electrical activity is followed by an increase in colonic
tone. The increased postprandial contractility is greater in the
sigmoid than in the transverse colon. The effects of a meal on colonic
motility are commonly called the gastrocolic reflex.”

(As posted by Amit Ashish in Google groups)

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