EsophagusMeloy MacainagThe esophagus is a 10 inch muscular tube that extends from the pharynx to the stomach. It begins at the level of the cricoid cartilage and passes through the diaphragm at the level of the 10th thoracic vertebra. The muscles of the esophagus include an inner circular layer and outer longitudinal layer. Blood supply comes from branches of the inferior thyroid, descending thoracic aorta, and left gastric artery. Lymph drains to cervical, mediastinal and celiac nodes. Clinical notes discuss esophageal constrictions, achalasia, GERD, esophageal atresia, and various causes of esophagitis.
anatomy of esophagus by dr ravindra daggupatiRavindra DaggupatiThe document summarizes the anatomy and embryology of the esophagus. It discusses the esophagus' location, length, diameter at different ages, layers, blood supply, nerve supply, and more. Some key points:
- The esophagus is a muscular tube that transports food from the pharynx to the stomach. It has an upper and lower sphincter.
- During development, the esophagus forms from the foregut and separates from the trachea by the esophagotracheal septum.
- It has cervical, thoracic, and abdominal portions with different anatomical relationships in each region.
- The esophagus has four layers - fibrous, muscular