Pectoralis minor muscle

From Freepedia

Image:Pectoralis minor.png

Contents 1 Location 2 Action 3 Innervation 4 Blood supply

Location

The pectoralis minor muscle takes its origin from the 3rd to 5th ribs, near their costal cartilages. It is inserted into the medial border and superior surface of the coracoid process of the scapula.

Action

It stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall.

Innervation

Medial pectoral nerves (C8, T1)

Blood supply

Pectoral branch of the thoracoacromial trunk.

Muscles of the upper limb

The muscles connecting the upper extremity to the vertebral column: levator scapulae muscle | rhomboid major muscle | rhomboid minor muscle | trapezius muscle | serratus anterior muscle | latissimus dorsi muscle The muscles connecting the upper extremity to the anterior and lateral thoracic walls: pectoralis major muscle | pectoralis minor muscle | subclavius muscle The muscles of the shoulder and musculotendinous cuff: deltoid muscle | infraspinatus muscle | subscapularis muscle | supraspinatus muscle | teres major muscle | teres minor muscle The muscles of the arm: anconeus muscle | biceps brachii muscle | brachialis muscle | triceps brachii muscle | coracobrachialis muscle The muscles of the forearm: brachioradialis muscle | extensor carpi radialis brevis muscle | extensor carpi radialis longus muscle | extensor carpi ulnaris muscle | extensor digiti minimi | extensor digitorum muscle | extensor pollicis longus muscle | flexor carpi radialis muscle | flexor carpi ulnaris muscle | flexor digitorum profundus muscle | flexor digitorum superficialis muscle | flexor pollicis brevis muscle | flexor pollicis longus muscle | pronator quadratus muscle | pronator teres muscle | palmaris longus muscle | supinator muscle The muscles of the hand: abductor pollicis brevis muscle | abductor pollicis longus muscle | adductor pollicis muscle | dorsal interossei muscles | extensor pollicis brevis muscle | palmar interossei muscles | palmaris brevis muscle | opponens digiti minimi muscle | opponens pollicis muscle | lumbrical muscles