ACTIVITY 3: FILL ME IN
Instructions: Use the words in the box to complete the passage about the respiratory system.
Bronchides
Oxygen
Inhale
Exhale
blood
carbon dioxide
trachea
bronchi
Pharynx
alveoli
All animals need 1)______
to make energy from food. We get this oxygen from the air
that we breathe. In order to get the oxygen into the blood where it can be transported to the rest of the
body, the air travels through a system of organs called the respiratory system
When you 2).________
air enters the body through the nose or the mouth. From there it
passes through the 3)_______
which forces air into the 4)______
and food into the
esophagus. The air travels down the trachea into two branching tubes called 5)______
and
then on into 6)_______
Finally, the air reaches the 7)_____
where gas exchange
takes place
In the lungs oxygen from the air combines with the 8).______
At the same time, the
waste gas 9).______
leaves the blood and then leaves the body when you
10)______​