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Pectoralis Minor

Description

Origin :

  • 3rd to 5th ribs near their costal cartilages

Insertion :

  • Medial border and superior surface of coracoid process of scapula

Innervation :

  • Medial pectoral nerves; clavicular head (C8 and T1)

Arterial Supply :

  • Pectoral branch of the thoracoacromial trunk

Depth :

  • Superficial

Action

Action :

  • Stabilizes scapula by drawing it inferiorly
  • and anteriorly against thoracic wall
Target Muscles Target Muscles