ANATOMY

Detailed explanation-1: -Esophagus: The esophagus is a muscular tube that connects the pharynx (throat) to the stomach. The esophagus contracts as it moves food into the stomach.

Detailed explanation-2: -the alimentary canal (also called the digestive tract). This long tube of organs makes a pathway for food to travel through the body. It runs from the mouth to the anus (where poop comes out) and includes the esophagus, stomach, and intestines.

Detailed explanation-3: -The food pipe (oesophagus) is part of your digestive system. It is the tube that carries food from your mouth to your stomach. It lies behind the windpipe (trachea) and in front of the spine.

Detailed explanation-4: -The lower esophageal sphincter (LES) is a bundle of muscles at the low end of the esophagus, where it meets the stomach. When the LES is closed, it prevents acid and stomach contents from traveling backwards from the stomach. The LES muscles are not under voluntary control.