Anatomy Of The Stomach And Esophagus

In the case of the esophageal sphincter it allows food to pass into the stomach and then tightens up to prevent food from going backwards. Describe the course of the esophagus.

Pathology Outlines Anatomy

At the junction of the esophagus and stomach this thick abrasion resistant layer changes abruptly to the thin simple columnar epithelium of the stomach which is.

Anatomy of the stomach and esophagus. The following histological features are of interest. The mucosal epithelium is a nonkeratinized stratified squamous epithelium. The esophagus is about 8 inches long and is lined by moist pink tissue called mucosa.

Delivers food from pharynx to stomach. Your stomach is a c shaped digestive organ. The esophagus runs behind the windpipe trachea and heart and in front of the spine.

Just before entering the stomach the esophagus passes through the diaphragm. Microscopic anatomy of the esophagus. The mucosa of the antrum participates in the process of gastric acid secretion by releasing the secretagogue gastrin into the circulation.

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. It traverses the muscular portion of the diaphragm esophageal hiatus level of t10 vertebra. The esophagus is a muscular tube connecting the throat pharynx with the stomach.

Unlike the mouth and pharynx the esophagus wall figure 2 contains all four layers of the alimentary canal. Food is swallowed and passes through the esophagus to the stomach where the majority of digestion takes place. Clinical anatomy of the esophagus stomach.

The stomach therefore can be considerer as two organs. Anatomy of the esophagus the esophagus is a muscular tube about ten inches 25 cm long extending from the hypopharynx to the stomach. Its proximal portiın is designed for storage and digestion and its distal part is adapted to the role of mixing and evacuation.

Mucosa submucosa muscularis externa and adventitia. It is intra abdominal for approximately 6cm where it is exposed to the higher intra abdominal pressure.

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