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Diagram from cancer.gov: 1. Body of stomach 2. Fundus 3. Anterior wall 4. Greater curvature 5. Lesser curvature 6. Cardia 9. Pyloric sphincter 10. Pyloric antrum 11. Pyloric canal 12. Angular incisure 13. Gastric canal 14. Rugal folds. The pylorus is the furthest part of the stomach that connects to the duodenum.
The pylorus (from Greek 'gatekeeper') connects the stomach to the duodenum at the pyloric sphincter. The cardia is defined as the region following the "z-line" of the gastroesophageal junction, the point at which the epithelium changes from stratified squamous to columnar. Near the cardia is the lower esophageal sphincter. [9]
The pylorus of the stomach has a thickened portion of the inner circular layer: the pyloric sphincter. Alone among the GI tract, the stomach has a third layer of muscular layer. This is the inner oblique layer and helps churn the chyme in the stomach.
Directly opposite the incisura angularis of the lesser curvature the greater curvature presents a dilatation, which is the left extremity of the pyloric part; this dilatation is limited on the right by a slight groove, the sulcus intermedius, which is about 2.5 cm from the pyloric sphincter.
The intestine is also called the bowel or the gut. The lower GI starts at the pyloric sphincter of the stomach and finishes at the anus. The small intestine is subdivided into the duodenum, the jejunum and the ileum. The cecum marks the division between the small and large intestine. The large intestine includes the rectum and anal canal. [2]
English: Sequence of images diagramming the emptying of stomach chyme into the duodenum through the pyloric sphincter. As the stomach fills, signals from the stomach initiate the secretion of alkaline mucous into the duodenum. Peristaltic waves in the stomach then push chyme through the dilated pyloric sphincter into the duodenum.
In human anatomy, the intestine (bowel or gut; Greek: éntera) is the segment of the gastrointestinal tract extending from the pyloric sphincter of the stomach to the anus and as in other mammals, consists of two segments: the small intestine and the large intestine.
in the anal canal, it forms the internal anal sphincter. In the colon , the fibres of the external longitudinal smooth muscle layer are collected into three longitudinal bands, the teniae coli . The thickest muscularis layer is found in the stomach (triple layered) and thus maximum peristalsis occurs in the stomach.