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Muscles - Pectoral

Muscles of pectoral girdle, origin, insertion, & action

MuscleOriginInsertionAction
Pectoralis minor sternal ends of ribs 3-5 coracoid process depresses& abducts scapula
Serratus anterior ribs 1-8/9 medial border of scapula depresses & abducts scapula
trapezius occipital bone & spinous process's of c7 & T1-12 clavicle, spine of scapula, acromion process extends neck/head; elevates, upwardly rotates & adducts scapula
Levator scapulae c1-4 medial border of scapula elevates and adducts scapula
Rhomboid major SP's of T 2-5 medial border of scapula elevates and adducts scapula
subclavius R1 inferior border of clavicle depresses clavicle
Rhomboid minor Sp's c7 & T2 medial border of scapula elevates and adducts scapula
Created by: Erinlei