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. Water
c. Sugar
d. Pop
a. Oxygen
We have ____ lungs in our body
What is the function of the lungs?
They give your body oxygen and help to remove carbon dioxide
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 alveoli is the air sacs that fill up with oxygen when we breathe in.
Inhaling is when you breathe out
False, inhaling is breathing in
6. Which part of the respiratory system warms and moistens our air?
- A) Lungs
- B) Nose
- C) Trachea
-D) Alveoli
B) Nose
Our diaphragm is ______ shaped
Our diaphragm is dome shaped
What is the trachea?
The trachea is 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
4. When you inhale, what happens to your diaphragm?
- A) It relaxes and moves up
- B) It contracts and moves down
- C) It stays the same
- D) It fills with air
B. It contracts and moves down
The trachea is also known as the ______________
The trachea is also known as the windpipe
What is carbon dioxide?
Waste products that are left over after your body makes energy
Our left lung is smaller because our heart is on the left side.
True
3. 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