What body system are the Pectoralis Major and Minor and the Rectus abdominis and Transverse abdominis a part of?

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.

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explanation: stack as much of ham and cheese as you can

answer 2 is the right one. jim should measure his snack to make sure he is using the right serving size.