Back to previous page

image: Pectoralis Major Clavicular
Pectoralis Major Clavicular

Pectoralis Major Clavicular

 Articulations :

 Action :

  • Adducts and medially rotates humerus;
  • draws scapula anteriorly and inferiorly
  • Acting alone: clavicular head flexes humerus

Origin :

  • and aponeurosis of external oblique muscle
  • superior six costal cartilages
  • <strong>Clavicular head:</strong> anterior surface of medial half of clavicle

Insertion :

  • Lateral lip of intertubercular groove of humerus

Innervation :

  • clavicular head (C5 and C6)
  • Lateral and medial pectoral nerves;

Depth :

  • Superficial
Website powered by Vantage CMS