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rectus abdominus

a major spine flexor; the name means "striaght muscle of the abdomen"

pectoralis major

prime mover for shoulder flexion and adduction


prime mover for shoulder abduction

external obliques

part of the abdominal girdle; forms the external lateral walls of the abdomen


acting alone, each muscle of this pair turns the head toward the opostie shouder

internal obliques

helps form the abdominal girdle

transverse abdominus

helps from the abdominal girdle

external intercostal

deep muscles of the thorax that promote the inspiratory phase of breathing

latissimus Dorsi

muscle that allows you to shrug your shoulders or extend your head

pectoralis Major

muscle that is the antagonist of the latissimus dorsi

deep muscles of the thorax that promote inhalation during breathing

external intercoastal


each muscle of this pair turns the head from side to side as in when you signal "no"

rectus abdominus

major spine flexor muscle


primary shoulder mover: flexion


primary shoulder mover: adduction primary shoulder mover: adduction

external oblique

forms the external lateral wall of the abdomen

pectoralis major

primary mover of the shoulder when abducting shoulder blades


help you bend side to side

sit ups are best accomplished by using this

rectus abdominus

muscle in charge of pushups

pectoralis major


flat, sheat-like tendon

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