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Muscle group

Chest

The broad muscles across the front of the ribcage that push the arms forward and across the body.

Muscle group

Overview

The chest muscles — chiefly the pectoralis major, with the smaller pectoralis minor beneath — form the broad muscular sheet across the front of the ribcage, fanning out to attach to the upper arm.

Their main action is pushing and drawing the arms forward and across the body: think of a press-up, pushing a door or a throwing action. They work closely with the shoulders and triceps in most pushing movements.

Good to know

  • The main "pushing" muscle of the upper body
  • Works together with the shoulders and triceps
  • Involved in throwing, pushing and pressing actions

Where it’s used

Sports this relates to:

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