C.4.1. Breathing
MCQ C.4.1.
Breathing
1 / 4
During normal respiration, which muscle(s) is or are active?
2 / 4
During respiration performed during exercise, which muscle(s) is or are active?
3 / 4
What is the major muscle used during inspiration?
4 / 4
At rest, which muscle is mainly used during expiration?
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