Definition
Why do we need oxygen?
To keep us alive!
Your mouth is part of the respiratory system
True
What do your cells need to stay alive?
a. Oxygen
b. Carbon Dioxide
c. Sugar
d. Pop
a. Oxygen
We have ____ lungs in our body
When we breathe in our lungs ___________
inflate
Breathing with a mask is bad for you
False, a mask acts to clean the air before you breathe in which helps to protects you from germs
What is the main function of the respiratory system?
a. digest food
b. circulate blood
c. to exchange oxygen and carbon dioxide
d. to produce hormones
c. to exchange oxygen and carbon dioxide
When we inhale we are using oxygen and we exhale ___________
When we inhale we are using oxygen and we exhale carbon dioxide
What is the alveoli?
The air sacs that fill up with oxygen when we breathe in.
Inhaling is when you breathe out
False, inhaling is breathing in
As you breathe, this contracts and flattens to give your lungs room to fill up with air:
a) Larynx
b) Lung balloon
c) Diaphragm
d) Bronchiole
c) Diaphragm
Our diaphragm is ______ shaped
Our diaphragm is dome shaped
What is the trachea?
The windpipe. Air travels through the trachea to get to your lungs
Exhaling is when you breathe in
False, exhaling is when you breathe out
Why is smoking harmful to our lungs?
a) the chemicals in the cigarettes can cause cancer
b) it turns our lungs black
c) it damages our alveoli
d) all of the above
d) all of the above
The trachea is also known as the ______________
The trachea is also known as the windpipe
What is the name of the waste product we breathe out?
Carbon Dioxide
Our left lung is smaller because our heart is on the left side.
True
What is the name of the tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged?
- A) Bronchi
- B) Alveoli
- C) Trachea
- D) Diaphragm
B. Alveoli
The _________ is also known as the voice box
The larynx is also known as the voice box