AIIMS May 2011 – MCQ 86
Maximum postprandial motility is seen in?
A. Ascending colon
B. Transverse colon
C. Descending colon
D. Sigmoid colon
Correct answer : D. Sigmoid colon
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d. Sigmoid colon
descending colon(repeat question)
descending colon
correct ans. Is sigmoid colon !
It is a repeat qustn bt answr givn in ten yr ” descndng colon ” is nt corrct !
Go for sigmoid cln if same qstn is repeatd !
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.”