The esophagus is formed from several layers of cells originally derived from the endoderm, or innermost cell layers of the embryo.
Is The Esophagus Wall Thick. The esophageal muscles are not uniform. The esophagus a is rather straight tube communicating the pharynx and the stomach.
Dr. Das--Esophagus Histology at University of South Dakota ... from classconnection.s3.amazonaws.com
Except at the upper esophageal sphincter, the. Smooth muscles can contract slowly. It is located in the neck and chest cavity (thorax).
Esophageal spasms occur when the esophagus contracts abnormally, and they can be painful and uncomfortable.
Except at the upper esophageal sphincter, the. The stomach is a j shaped expanded bag, located just left of the midline between the oesophagus and small intestine. On top of that is the submucosa. The esophageal muscles are not uniform.
