Question: What Are The Four Main Functions Of The Stomach?

Why the digestive system is important?

Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair.

Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body..

How is food digested step by step?

There is certain steps food and liquid must take before exiting your system.Step 1: Mouth. … Step 2: Esophagus. … Step 3: Stomach. … Step 4: Small Intestine. … Step 5: Large Intestine, Colon, Rectum and Anus.

What is the most important part of the digestive system?

The small intestine is a part of the digestive system. It is the most important organ for the digestion of food.

What are the three main functions of your digestive system?

There are three main functions of the gastrointestinal tract, including transportation, digestion, and absorption of food. The mucosal integrity of the gastrointestinal tract and the functioning of its accessory organs are vital in maintaining the health of your patient.

What is the function of stomach answer?

The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

What are the 4 parts of the stomach?

The human stomach is subdivided into four regions: the fundus, an expanded area curving up above the cardiac opening (the opening from the stomach into the esophagus); the body, or intermediate region, the central and largest portion; the antrum, the lowermost, somewhat funnel-shaped portion of the stomach; and the …

What is the purpose of Rugae in the stomach lining?

The gastric folds (or gastric rugae) are coiled sections of tissue that exist in the mucosal and submucosal layers of the stomach. They provide elasticity by allowing the stomach to expand when a bolus enters it.

What are the main divisions of the stomach?

The main divisions of the stomach are the following:Cardia. The cardia is the portion of the stomach surrounding the cardioesophageal junction, or cardiac orifice (the opening of the esophagus into the stomach). … Fundus. The fundus is the enlarged portion to the left and above the cardiac orifice.Body. … Pyloric antrum.

What is the stomach lining called?

The mucosa is the inner layer (stomach lining). It contains glands that produce enzymes and acid, which help digest food. The submucosa attaches the mucosa to the muscularis. The muscularis is a layer of muscle.

What are the main functions of the stomach?

The stomach has 3 main functions: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 4 cells of the stomach and their function?

Four major types of secretory epithelial cells cover the surface of the stomach and extend down into gastric pits and glands: Mucous cells: secrete an alkaline mucus that protects the epithelium against shear stress and acid. Parietal cells: secrete hydrochloric acid. Chief cells: secrete pepsin, a proteolytic enzyme.