Describe the anatomy/histology and function of the stomach starting at the gross level and working down...

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Biology

Describe the anatomy/histology and function of the stomachstarting at the gross level and working down to the histology ofall the major layers. Again focusing on form and function, use yourslides and textbook to give me all the juicy (get it digestivejuices!) details of how this organ does its job

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There are four main regions in the stomach the cardia fundus body and pylorus The cardia or cardiac region is the point where the esophagus connects to the stomach and through which food passes into the stomach Located inferior to the diaphragm above and to the left of the cardia is the domeshaped fundus Below the fundus is the body the main part of the stomach The funnelshaped pylorus connects the stomach to the duodenum The wider end of the funnel the pyloric antrum connects to the body of the stomach The narrower end is called the pyloric canal which connects to the duodenum The smooth muscle pyloric sphincter is located at this latter point of connection and controls stomach emptying In the absence of food the stomach deflates inward and its mucosa and submucosa fall into a large fold called a ruga The convex lateral surface of the stomach is called the greater curvature the concave medial border is the lesser curvature The stomach is held in place by the lesser omentum which extends from the liver to the lesser curvature and the greater omentum which runs from the greater curvature to the posterior abdominal wall The wall of the stomach is made of the same four layers as most of the rest of the alimentary canal but with adaptations to the mucosa and muscularis for the unique functions of this organ In addition to the typical circular and longitudinal smooth muscle layers the muscularis has an inner oblique smooth muscle layer As a result See Answer

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