res
pir
atory
sys
tem
100
This is often called the windpipe.
What is trachea?
100
This is the muscle that helps us breathe.
What is the diaphragm?
100
These are microscopic air-filled sacs.
What are the alveoli?
100
These blood vessels surround the alveoli.
What are capillaries?
100
This is what the air goes through to get to the alveoli.
What are the bronchioles?
200
These two tubes go into the lungs.
What are the bronchial tubes?
200
The diaphragm separates the heart and lungs from this.
What is the abdominal cavity?
200
This is the waste product that we don't want in our bodies.
What is carbon dioxide?
200
This is the gas that we need to stay alive.
What is oxygen?
200
Before the oxygen goes into the trachea it goes through this.
What is the larynx
300
This is before the larynx.
What is the nasal cavity?
M
e
n
u