What is the Gaster stomach?
stomach. [stum´ak] the curved, muscular, saclike structure that is an enlargement of the alimentary canal (see digestive system) and lies between the esophagus and the small intestine; called also gaster.
What is the function of Gaster?
The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food.
How is the stomach organized?
The distribution of gastric glands varies throughout the stomach. The first region, 1.5 to 3 cm in length, around the gastric cardia or gastro-oesophageal junction, contains the cardiac glands. The second region, the fundus and body, contains the acid-secreting glands.
Is your stomach the size of your fist?
Answer: Myth. While it may seem hard to believe, the size of the stomach does not correlate with weight or weight control.
Can ant live without gaster?
A Formica subsericea worker lived without her abdomen for five days. Paris, ii juillet, 1898, p. 130. twenty-one days; one lived thirty days; and one lived forty one days.
What organ is posterior to the stomach?
The posterior surface of the stomach is related to the left hemidiaphragm, the spleen, the left kidney (and adrenal), and the pancreas (stomach bed).
What is the upper stomach called?
The cardia is the top part of your stomach. It contains the cardiac sphincter, which prevents food from traveling back up your esophagus. The fundus is a rounded section next to the cardia. It’s below your diaphragm (the dome-shaped muscle that helps you breathe).
What are the five main functions of the stomach?
Function
- temporary storage for food, which passes from the esophagus to the stomach where it is held for 2 hours or longer.
- mixing and breakdown of food by contraction and relaxation of the muscle layers in the stomach.
- digestion of food.
What are the 4 functions of the stomach?
Motility, digestion, absorption and secretion are the four vital functions of the digestive system.
What are the three main functions of the stomach?
It has three functions: Temporarily store food. Contract and relax to mix and break down food. Produce enzymes and other specialized cells to digest food.
What are the four functions of the stomach?
The four key components of gastric digestive function are its function as a reservoir, acid secretion, enzyme secre- tion and its role in gastrointestinal motility.