Download The Human Body Part 3 of 3 The Nervous and Digestive System

The Human Body and Nutrition
Part 3 of 3
The Nervous and Digestive
System
Abney Elementary
Mrs. Delaup
What are the main parts of the
Nervous System?
• 1. The main parts of the Nervous
System are the brain, spinal cord,
nerves, and sense organs.
What is the job of the Nervous
System?
• 2. The job of the Nervous System is to
control all body systems.
• “The King” of body systems
What is the brain?
• 3. The brain is the control center of the
nervous system.
How does the brain work?
• 4. The brain uses information it gets
from your body to direct how each body
system works.
What is the brain and the
Nervous System made of?
• 5.The brain and all
other parts of the
nervous system are
made up of nerve cells,
or neurons.
• The thin fiber like
threads coming off of
the spinal cord are
nerves. (see picture)
What is a neuron?
• 6. Groups of neurons are called nerves
and they pass along information.
What is the spinal cord?
• Your spinal cord is
a tube of nerves
that runs through
your spine, or
backbone.
What is actually happening when
a person swings a bat?
• 8.When a person swings a bat, the
muscles receive a message from the
brain to swing the arms.
What are the main parts of the
Digestive System?
• 9. The main
parts of the
digestive system
is the mouth,
esophagus,
stomach and
intestine.
What is the job of the Digestive
System?
• 10. The job of
the Digestive
System is to
provide nutrients
to the body.
Where does digestion begin?
• 11.Digestion begins in the mouth when
you grind up food with your teeth.
What does saliva do?
• 12.Saliva softens the food.
What happens after you swallow?
• 13.After you
swallow, the food
enters your
esophagus which
connects your
mouth with your
stomach.
What happens in the stomach?
• 14. The stomach muscles squeeze the
food and mix it with digestive juices.
What happens when the food
leaves the stomach?
• 15.The food is then passed on into the
small intestine where the nutrients pass
through the walls into the blood. The
blood carries the nutrients to the
body’s cells.
What is the last stage of
digestion?
• 16. Lastly, the
food reaches
the large
intestine and is
then passed
through the
body.
What is the importance of fiber?
• 17.Fiber helps your digestive system
work well.
• Eat foods with fiber, such as fresh
vegetables, beans, fruits, cereals, and
breads.