★ Breathing System Quiz
What is the function of the ribs and intercostal muscles?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To cause air to move into or out of the lungs
Preview next quiz:
What is the percentage of oxygen in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable
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