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What is Slow waves/ BER are in increasing order in the following pas of GIT and explain in detail?
"Waves occur 3-4 times per minute in the stomach. In the small intestine, there is an average of 12 BER cycles/min in the proximal jejunum, declining to 8/min in the distal ileum. The frequency of the wave increases along the colon, from about 2/min at the ileocecal valve to 6/min at the sigmoid."