Esophagus - common hepatic(CH Gastroduodenal GD right...

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Digestive System Esophagus Esophagus: Adventitia/Serosa * The outermost layer of the thoracic esophagus is adventitia * After passing through the diaphragm the outermost layer becomes a serosa Esophageal Stomach Junction Stomach * Food storage, mixing, and acidic breakdown for subsequent absorption in the small intestine. * The stomach is anatomically subdivided into four zones – * Cardia * Fundus * Body * Pylorus. Esophagus and Stomach Stomach: Blood Supply * The arteries that supply the stomach are branches of the celiac trunk or artery. This is the first unpaired branch of the abdominal aorta, arising just after the aorta passes behind the diaphragm. The branches of the celiac artery are three: * left gastric * splenic * common hepatic The branches to the stomach arise from the celiac (C) * left gastric (LG) - supplies the lesser curvature of the stomach and lower esophagus * esophageal E * Splenic( S) which gives rise to: * short gastric SG - supplies area of the fundus * left gastroepiploic (LGE) - supplies the left part of greater curvature of the stomach
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Unformatted text preview: * common hepatic (CH) * Gastroduodenal ( GD) * right gastric RG - supplies right side of lesser curvature of the stomach * right gastroepiploic RGE - supplies the right part of the greater curvature of the stomach Stomach: Mucosa * Pocked with depressions called gastric pits * Lined with simple columnar epithelium * Cells at bottom of pits divide and produce new cells that are sloughed off into the chyme Stomach: Glands * Tubular glands open into the bottom of each gastric pit * In the cardia and pyloric regions they are called cardiac glands and pyloric glands * In the rest of the stomach, they are called gastric glands Digestive System Stomach: Glands Glands differ in cellular composition but collectively they consistof the following cell types * Mucous cells * Secrete mucus * Predominate in the cardiac and pyloric glands * In gastric glands, they are called mucous neck cells and are concentrated in the narrow neck of the gland where it opens into the pit...
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Esophagus - common hepatic(CH Gastroduodenal GD right...

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