What is the frequency of slow waves in the ileum?

The correct frequency of slow waves in the ileum is approximately 9 per minute. Slow waves are rhythmic fluctuations in the membrane potential of gastrointestinal smooth muscle cells and are crucial in coordinating peristaltic movements in the intestines.

In the ileum, the rate of these slow waves is influenced by the degree of myogenic activity and inherent pacemaker activity of the intestinal wall. The slow waves facilitate the contractions necessary for the mixing and propulsion of intestinal contents, and the specific frequency can vary along different sections of the gastrointestinal tract.

In comparison to other regions, the ileum has a moderate rate of slow waves, which is important for its role in the digestive process, allowing for sufficient time for nutrient absorption while also coordinating movement through the intestinal tract. Thus, knowing that the ileum operates at roughly 9 slow waves per minute helps students understand its physiological function within the overall digestive system.