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What is the large brand of muscle that controls the size of the chest activity

User Neets
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2 Answers

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It's the Diaphragm hope I got it right

User Abdul Kader
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5 votes

Answer:

Diaphragm

Step-by-step explanation:

The diaphragm because it controls the size of the chest cavity using the lungs.

Hope This Helps!

User Adeel Raza Azeemi
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