THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The primary function of the esophagus is to transport food entering the mouth through the throat and into the stomach. This function begins at the very beginning of the esophagus, following some taste buds located on the organ, at the upper esophageal sphincter (UES).

Detailed explanation-2: -These organs include the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus.

Detailed explanation-3: -Initially, the esophagus is lined by a simple columnar epithelial layer, which is gradually replaced by a stratified squamous tissue comprised a clearly distinct basal layer surrounded by the spinous, granulated, and cornified suprabasal layers.

Detailed explanation-4: -The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus.