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.

2025年1月24日 · Anatomy. The stomach is a J-shaped, hollow organ in the digestive system designed for food storage, mechanical digestion, and chemical processing. [3] Below is a detailed description of its anatomy: ... Anatomy of the Human Body. 9th ed., Lea & Febiger, 1918. Boron, Walter F., and Emile L. Boulpaep.

2024年12月31日 · Internal Stomach Anatomy. The stomach’s internal structure consists of five distinct regions, layers forming its wall, and specialized folds lining its interior. Layers of the Stomach Wall. The stomach is made up of four distinct layers, each with a specialized role in digestion: the mucosa, submucosa, muscularis externa, and serosa.

2025年1月17日 · structures of the human stomach The stomach has three layers of muscle: an outer longitudinal layer, a middle circular layer, and an inner oblique layer. The inner lining consists of four layers: the serosa, the muscularis, the submucosa, and the mucosa.

In the human digestive system, the stomach lies between the esophagus and the duodenum (the first part of the small intestine). It is in the left upper quadrant of the abdominal cavity. The top of the stomach lies against the diaphragm. Lying behind the stomach is the pancreas.

2024年7月17日 · Understanding the stomach's anatomy and physiology is crucial for treating various gastrointestinal conditions. Structure. The stomach is located on the left of the midline and centrally in the upper abdominal area. This organ comprises 4 main regions: the cardia, fundus, body, and pylorus.

2024年4月29日 · The stomach has four main anatomical divisions; the cardia, fundus, body and pylorus: Cardia – surrounds the superior opening of the stomach at the T11 level. Fundus – the rounded, often gas filled portion superior to and left of the cardia.

2025年1月18日 · The stomach, gallbladder, and pancreas are three of the most important digestive organs in the human body. These organs work together to produce and store secretions that digest our food into its most basic building blocks. Once digested, these small molecules pass into our intestines to be absorbed and to feed our body's tissues.

2023年9月11日 · The stomach is an organ of the digestive system, specialized in the accumulation and digestion of food. Its anatomy is quite complex; it consists of four parts, two curvatures and receives its blood supply mainly from the celiac trunk. Innervation is provided via the vagus nerves and the celiac plexus.

2025年1月18日 · Microscopic analysis of the stomach's structure reveals that it is made of several distinct layers of tissue: the mucosa, submucosa, muscularis, and serosa layers. The innermost layer of the stomach is known as the mucosa, and is made of mucous membrane.