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Presentation1 stomach
1.
2. • The stomach
is an organ of
digestion
• It has a
saclike shape
and is located
between the
esophagus
and the
intestines
3. IT IS A MUSCULAR ORGAN LOCATED ON
THE LEFT SIDE OF THE UPPER ABDOMEN.
Just below
the
esophagus.
4. 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
5. • 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.
6.
7. 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.
8. • 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!