What is the professional name for your chest muscles? Biceps

Pectoralis Minor

Pectoralis Major

Deltoids

Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder. There are two such muscles on each side of the sternum (breastbone) in the human body: pectoralis major and pectoralis minor.

Explanation:

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Pectoralis Major

it covers the chest... I hope this helps