Reread pp. 184-185 and answer the questions.
What is in the air that our bodies need?
What system helps our bodies get the oxygen they need from the air?
Where are your lungs located?
What bones protect your lungs?
What do the lungs do when you breathe?
What muscle causes the lungs to move?
How does the air get out of your lungs?
What picks up oxygen from your lungs?
What carries oxygen to all parts of the body?
Once your body uses oxygen, where does the blood go
How many times do you breathe every minute?
What can you do to keep your heart and lungs strong?
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