Which Layer of the Gastrointestinal Wall Is Primarily Responsible for Peristalsis

Mr. Santos, a 45-year-old Male, Presents to the Clinic with Complaints of Abdominal Pain, Diarrhea and Weight Loss. He Reports Having Frequent Loose Stools and Occasional Blood in His Stool. Upon Further Assessment and the Healthcare Provider Suspects a Possible Gastrointestinal Disorder