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Home > Bodybuilding & Anatomy > Origin & Insertion of Muscle > Pectoralis Major - origin & insertion
• Article

Pectoralis Major - origin & insertion
pectoralis major muscle
origin & insertion of pectoralis major muscle
• Full article

 

Origin:

  • Clavicular head: medial half of clavicle

  • Sternal head: sternum, cartilage of upper 6 ribs

Insertion: lateral lip of bicipital groove of humerus

Actions:

  • Adduction, horizontal adductiol and medial rotation of humeru

  • Clavicular head: flexion of humerus

  • Sternal head: extension of humerus from a flexed position

Nerve: 

  • Clavicular head: lateral pectora nerve (C5, 6, 7)

  • Sternal head: medial pectoral nerve (C8, T1) .

4.5 / 5 (14 Votes)

Wed, 18 Jul 2007 23:26:00
Andrew Mills

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