PG NEXT Question of the Day 30-10-2016
Question:
What is depicted in the following image?
a. Migrating motor complex
b. Phases of deglutition
c. Acid wave form in GERD
d. The recording of action potential in
interstitial cells of Cajal
Answer: a. Migratory motor complex
Migrating motor complex (MMC), starts with a quiescent period(phase I), continues with a
period of irregular electrical and mechanical activity (phase II), and ends
with a burst of regular activity (phase III). The contractions migrate aborally
at a rate of about 5 cm/min, and also occur at intervals of approximately 100
min. Gastric secretion, bile flow, and pancreatic secretion increase during
each MMC.