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What is the primary muscle used for normal breathing and which additional muscles are used to increase inspiration and expiration when performing strenuous exercise?

What is the primary muscle used for normal breathing and which additional muscles are used to increase inspiration and expiration when performing strenuous exercise?
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What is the primary muscle used for normal breathing and which additional muscles are used to increase inspiration and expiration when performing strenuous exercise?

User JoyGuru
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5 votes

Answer:

rat rat

Step-by-step explanation:

rat rat rat

User Subodh Nijsure
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The primary muscle used for normal breathing would be the lungs. Addition muscles used would be the diaprahm.
User Vimzy
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