2023年10月30日 · What is the gastric mucosa and which are the most important cells of the stomach? Learn the histology of the stomach in an easy way, with many diagrams.

Structure of the stomach. Food starts to be digested and absorbed in the stomach, although absorption is mostly limited to water, alcohol and some drugs. The stomach is an expandable, muscular bag, and it keeps swallowed food inside it by contracting the muscular pyloric sphincter.

Histologically, the entire stomach is made up of simple tubular glands and foveolae (gastric pits) and there are essentially only 2 types of mucosa: Oxyntic (fundus and body). Cross-section of stomach mucosa showing the foveolae and glands. Glands: secrete various substances into …

Figure 23.4.2 – Histology of the Stomach: The stomach wall is adapted for the functions of the stomach. In the epithelium, gastric pits lead to gastric glands that secrete gastric juice.

The stomach is an expanded portion of the gastrointestinal tract or GI tract that partially digests food by breaking it down mechanically and chemically to form a pulpy acidic fluid called chyme. The stomach has four main regions: the cardia, fundus , body , and pylorus.

2023年1月16日 · Histology of the gastrointestinal tract Stomach Mucosa. The stomach mucosa consists of simple columnar epithelium with deep gastric pits that connect to the glands of the stomach lining. The glands of the stomach secrete mucous and digestive enzymes.

2017年1月29日 · Although the stomach can be compartmentalized based on anatomic landmarks, the histologic compartmentalization of the stomach is based on physiologic function. The gastric fundus and corpus (body) are composed of oxyntic mucosa, whereas the pyloric antrum and pylorus contain pyloric glands.

STOMACH • Stomach is a dilated segment of the digestive tract, that digest food and secrets hormone • There are three histological regions: Cardia Fundus and body Pylorus • The fundus and body are identical in microscopic structure • The mucosa and submucosa of the undistended stomach lie in longitudinally directed folds known as rugae

Histology. 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 (Figure 23.16 ...

Histologically, three regions are distinguishable in the stomach: the cardia, fundus/body, and pylorus. The cardia is the transitional region between the esophagus and body of the stomach. The pylorus is the narrow region that connects the stomach to the duodenum.