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    Presentation1 stomach Presentation1 stomach Presentation Transcript

    • • The stomach is an organ of digestion• It has a saclike shape and is located between the esophagus and the intestines
    • IT IS A MUSCULAR ORGAN LOCATED ONTHE LEFT SIDE OF THE UPPER ABDOMEN. Just below the esophagus.
    • SIZE COMPARISON• The stomach is about 12 inches (30.5 cm) long and • The stomach is about the size is 6 inches. (15.2 cm) wide of 2 adult fists. at its widest point
    • • 1. ) Food enters the stomach from the esophagus • 2. ) The connection between the stomach and the esophagus is called the cardiac sphincter. The cardiac sphincter prevents food from passing back to the esophagus. • 3. ) Once the food enters the stomach, gastric juices are used to break down the food.
    • 1) The inner lining (mucosa) consists of millions of microscopic glands which secrete gastric juices.2) Beneath this is a supporting layer (submucosa)3) Beneath this is the muscle layer. This is responsible for stomach contractions and emptying.4) Finally there is a thin outer covering known as the serosa.
    • • When we swallow our food, we also swallow air. The best way to get rid of this air is to burp.• Moths don’t have stomachs.• A starfish can turn its stomach inside out.• A frog can throw up its stomach and clean it with its legs.• The stomach can easily stretch to hold 1 quart of food.• People can, and have lived without a stomach if it has been removed because of disease!