GENERAL HISTOLOGY

Detailed explanation-1: -The esophagus is a muscular tube about ten inches (25 cm.) long, extending from the hypopharynx to the stomach. The esophagus lies posterior to the trachea and the heart and passes through the mediastinum and the hiatus, an opening in the diaphragm, in its descent from the thoracic to the abdominal cavity.

Detailed explanation-2: -The esophagus is located in the center of your chest in an area called the mediastinum. It lies behind your windpipe (trachea) and in front of your spine.

Detailed explanation-3: -Also Known As: The upper esophageal sphincter is abbreviated as UES. It is also known as the inferior pharyngeal sphincter since it’s positioned at the lower end of the pharynx and protects the opening into the esophagus.

Detailed explanation-4: -Anteriorly, the esophagus is related to the trachea, right pulmonary artery, left bronchus, pericardium with left atrium, and diaphragm. Posteriorly, the esophagus is related to the vertebral column, right posterior intercostal arteries, thoracic duct, thoracic part of the aorta, and diaphragm.