MEDICAL PHYSIOLOGY

Detailed explanation-1: -The esophagus contains four layers-the mucosa, submucosa, muscularis, and tunica adventitia.

Detailed explanation-2: -The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver.

Detailed explanation-3: -Mucosa. This is the first and innermost layer or lining. Submucosa. This second layer supports the mucosa. Muscularis. The third layer is made of thick muscles. Subserosa. This layer contains supporting tissues for the serosa. Serosa. This is the last and outermost layer.