Page 84 - Grasp English B2 (Student Book)

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Science Human Digestive System

How do we
How do we
A. Discuss with a partner.
digest
The human body is made up of organ systems
functioning to keep us healthy, for example, the digest
circulatory system.
food?
1. Can you name two other organ systems? food?
2. What is the specific function of these two When we eat, food passes through our
systems? gastrointestinal (GI) tract, which goes from
our mouth to our anus via a tube connecting
B. Read the text and label the diagram using the different organs. Bacteria throughout the
words in bold. GI tract help to break the food down to be
digested more easily.

When food enters your stomach, it is mixed
1.
4. with digestive juices which help to break
the food down. From here, it passes into the
small intestine. To further help the process
of digestion, your liver produces a digestive
5. juice called bile. This helps to break down fat
and digest vitamins. It passes from the liver
2.
into the small intestine or is stored in the gall
bladder, a small organ between the liver and
large intestine, until it’s needed. The pancreas
is another organ which produces a digestive
juice to break down carbohydrates, fats and
protein. It sits behind the stomach, close to the
small intestine where the digestive juice will
3. work its magic.
6.
In the small intestine, some of the water from the
food is absorbed as it passes through, as well
as the digested nutrients from your food. Some
of the food we eat is more difficult to digest,
GI tract - the region of the body where digestion takes place and this passes through to the large intestine,
organ - a part of the body with a specific role where the remaining water is absorbed. Any
undigested food is then passed through the
break down - to make something large into smaller parts anus when you go to the toilet.

absorb - take in

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