The first debate for the Democratic Partyâs 2016 presidential contenders will take place October 13 in Nevada and be hosted by CNN, the Democratic National Committee announced Thursday, just hours before Republican hopefuls face off on stage for the first time in Cleveland.
The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. Associated with the alimentary tract are the following accessory organs: salivary glands, liver, gallbladder, and pancreas.
Esophagus â Digestive System. Upper esophageal sphincter is a muscle bundle at the beginning of the esophagus. This muscle is in use when breathing, eating, belching, and vomiting. Immediately, when swallowing the upper esophageal sphincter opens to allow the bolus (masticated food) to pass into the esophagus.hat is Esophagus? A magic tube connecting the mouth to stomach, its help moves the food from the mouth to stomach and stops reverse motion from the stomach.