What Are The 5 Sphincters Of The Digestive System?
What Are The 5 Sphincters Of The Digestive System? Four distinct smooth muscle sphincters are present in the GI tract: the lower esophageal sphincter (LES), the pyloric sphincter (PS), the ileocecal sphincter (ICS), and the internal anal sphincter (IAS). What are the major digestive sphincters where are they and what do they do? Two smooth