Stomach

Gaster

A J-shaped muscular organ in the left upper quadrant of the abdomen. It has four regions: cardia, fundus, body, and pylorus. The greater and lesser curvatures define its borders. Three layers of smooth muscle (oblique, circular, longitudinal) enable powerful mixing movements.

유형 Organ
신체 계통 Digestive
신체 부위 Abdomen
라틴어 명칭 Gaster
FMA ID 7148

기능

Serves as a reservoir for ingested food, mixing and partially digesting it with gastric juice containing hydrochloric acid and pepsin. Mechanical churning converts food into chyme. Produces intrinsic factor for vitamin B12 absorption.

임상적 의의

Peptic ulcers result from mucosal erosion by acid and Helicobacter pylori. Gastric cancer is a major cause of cancer mortality. Gastroesophageal reflux disease (GERD) causes chronic heartburn. Gastrectomy is performed for cancer and severe ulcer disease.

하위 구조물

ruminant stomach Gland

자주 묻는 질문

What is the Stomach?
A J-shaped muscular organ in the left upper quadrant of the abdomen. It has four regions: cardia, fundus, body, and pylorus. The greater and lesser curvatures define its borders. Three layers of smooth muscle (oblique, circular, longitudinal) enable powerful mixing movements.
What is the function of the Stomach?
Serves as a reservoir for ingested food, mixing and partially digesting it with gastric juice containing hydrochloric acid and pepsin. Mechanical churning converts food into chyme. Produces intrinsic factor for vitamin B12 absorption.
What body system is the Stomach part of?
The Stomach is part of the Digestive.
What conditions affect the Stomach?
Peptic ulcers result from mucosal erosion by acid and Helicobacter pylori. Gastric cancer is a major cause of cancer mortality. Gastroesophageal reflux disease (GERD) causes chronic heartburn. Gastrectomy is performed for cancer and severe ulcer disease.
Where is the Stomach located?
The Stomach is located in the Abdomen region of the body.

관련 구조물

endodermal part of digestive tract endodermal gut trunk mesenchyme trunk and cervical mesenchyme gastrointestinal system mesentery digestive system mesentery exocrine pancreas exocrine component of pancreas exocrine pancreas epithelium epithelium of exocrine pancreas intestine bowel cloaca cloacal chamber skeletal muscle of trunk body musculature

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