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10 wrz 2021 · Your stomach is a muscular organ in your upper abdomen. It is part of your GI tract. During digestion, your stomach contracts, relaxes and produces acids that help break down food. Your stomach size can vary depending on when and how much you have eaten.
The motor functions of the stomach: 1) storage of food . 2) mixing – " – with gastric secretions – semifluid form – chyme 3) emptying of the food into duodenum . 1) Storage: receptive relaxation of the stomach (P = 6 mmHg) by - a plasticity of the smooth muscle layers - nervous action – reduction of vagal tone - humorally (gastrin)
The stomach a thick walled organ that lies between the esophagus and the first part of the small intestine (the duodenum). It is on the left side of the abdominal cavity; the fundus of the stomach lying against the diaphragm.
Anatomy and functions The stomach, located in the upper left quadrant of the abdomen, is a J-shaped organ composed predominantly of invol-untary smooth muscle. A bolus of food enters the stomach through the lower oesophageal sphincter, which rapidly closes to prevent regurgitation of gastric secretions (see part 1). Anatomically, the stomach is ...
The stomach is where protein digestion begins. The stomach does both mechanical and chemical digestion. It churns the food and mixes it with the gastric juices. By the time it leaves the stomach, the food is broken down into a creamy paste called chyme. Now it is ready to move on to the small intestine.
To detail the anatomy and physiology of the stomach. Introduction. The stomach is the most dilated part of the digestive tube, having a capacity of 1000–1500 ml in the adult. It is situated between the end of the oesophagus and the duodenum – the beginning of the small intestine.
Anatomy of the stomach. Landmarks. Topographically, the stomach has five regions (Fig. 1): (1) the cardia and gastroesophageal (GE) junction, (2) the fundus, (3) the corpus, (4) the antrum, and (5) the pylorus.
