Describing the Sphincters of the Digestive Tract Complete ea

Describing the Sphincters of the Digestive Tract Complete each sentence by dragging the proper label into the appropriate position. Then rearrange the sentences in order from proximal to distal through the digestive tract. The final step in allowing defecation is voluntary relaxation of the ___ sphincter, which is composed of skeletal muscle. The ___ sphincter separates the pharynx from the esophagus and regulates the passage of food into the esophagus. The ___ sphincter regulates the movement of food from the stomach to the small intestine. At the terminal end of the esophagus is the ___ sphincter, which subconciously controls the entrance of food into the stomach. The involuntarily controlled ___ sphincter is composed of smooth muscle that relaxes at the onset of defecation. The first sphincter of the digestive system, called the ___ muscle, surrounds the entrance to the oral cavity. The junction of the small and large intestines is marked by a pronounced muscular swelling known as the ___ sphincter, which regulates movement into the large intestine.

Solution

Sequence of sphincters from proximal to distal end of the digestive tract: