Muscles of The Shoulder & Arm Group 1 Flashcards
Biceps Brachii
Action: Elevates Scapula Downwardly rotates Laterally Flexes Neck Stabilizes Scapula
Origin:
Transverse process of C1 - C4
Insertion:
Medial boarder of Scapula
Triceps Brachii:
Action:
Extends elbow
Extends Humerus
Abducts Humerus
Origin:
Infaglenoid Tubercle of Scapula
Posterior Shaft
Posterior distal humeral
Insertion:
Olecranon Process
Trapezius (Upper)
Action:
Extends Neck and Head
Elevates Scapula
Upwardly rotates Scapula
Origin:
External Occipital Protuberance
Superior nuchal line
Nuchal Ligaments
Insertion:
Lateral third of Clavicle
Acromion Process
Scapular spine
Trapezius (Middle)
Action:
Retracts Scapula
Origin:
Spinous Process C7 -T12
Superspinous Ligament
Insertion:
Lateral third of Clavicle
Acromion Process
Scapular Spine
Trapezius (Lower)
Action:
Depress Scapula
Origin:
Nuchal Ligament
External Occipital
Insertion:
Action:
Retracts Scapula
Origin:
Spinous Process C7 -T12
Superspinous Ligament
Insertion:
Lateral third of Clavicle
Acromion Process
Scapular Spine
Levator Scapulae
Action: Elevates Scapula Downwardly rotates Scapula Laterally Flexes Neck Stabilizes Scapula
Origin:
Transverse Process
Insertion:
Medial boarder of Scapula
Rhomboid Major
Action:
Retracts Scapula
Downwardly rotates
Stabilizes Scapula
Origin:
Spinous Process of C2 - T5
Insertion:
Medial Boarder of scapula from root of Scapular spine to the inferior angle
Rhomboid Minor
Action: Elevates Scapula Downwardly rotates Scapula Laterally Flexes Neck Stabilizes Scapula
Origin:
Transverse Process
Insertion:
Medial boarder of Scapula
Pectoralis Minor
Action:
Protracts the Scapula at the Scc Joint
Origin:
3-5
Insertion:
Coracoid Process
Scapula
Serratus Anterior
Action:
Protracts Scapula
Upwardly rotates and Depresses
Origin:
Ribs 9 -11
Insertion:
Boarder of Scapula
Subclavious
Action:
Depresses Clavicle
Elevates first rib
Sternacoid Joint
Origin:
First Rib
insertion:
Clavicle
