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Upper Extremity Muscles by Action - Coggle Diagram
Upper Extremity Muscles by Action
Scapula
Rhomboids
Major
Insertion:
Medial border of scapula
Origin:
Spinous process of T2 - T5
Minor
Insertion:
Medial border of scapula
Origin:
Spinous process of C7 - T1
Pectoralis Minor
Insertion:
Coracoid process of scapula
Origin:
3rd - 5th ribs near costal cartilage
Levator Scapula
Insertion:
Medial border of scapula between superior angle and superior portion of spine of scapula
Origin:
Transverse processes of C1 - C4
Trapezius
Insertion:
Lateral 1/3 of clavicle, acromion and spine of scapula
Origin:
Medial 1/3 of superior nuchal line of occiput; external occipital protuberance, ligamentum nuchae, spinous processes of C7 - T12 vertebrae
Serratus Anterior
Insertion:
Anterior surface of medial border of scapula
Origin:
Lateral parts of ribs 1 - 8
Shoulder
Infraspinatus
Insertion:
Greater tubercle of humerus
Origin:
Infraspinous fossa of scapula
Teres Minor
Insertion:
Greater tubercle of humerus
Origin:
Upper 2/3 of lateral border of scapula
Supraspinatus
Insertion:
Greater tubercle of humerus
Origin:
Supraspinous fossa of scapula
Subscapularis
Insertion:
Lesser tubercle of humerus
Origin:
Subscapular fossa
Deltoids
Insertion:
Deltoid tuberosity
Origin:
Lateral 1/3 of clavicle, acromion, and spine of scapula
Teres Major
Insertion:
Medial lip of bicipital groove of humerus
Origin:
Inferior angle and lower 1/3 of lateral border of scapula
Pectoralis Major
Insertion:
Lateral lip of intertubercular groove of humerus
Origin:
Sternocostal Head
- Sternum, costal cartilage of 1st 6 ribs;
Clavicular Head
- Anterior surface of medial 1/2 of clavicle
Coracobrachialis
Insertion:
Medial surface of mid-humerus
Origin:
Coracoid process of scapula
Latissimus Dorsi
Insertion:
Floor of intertubercular groove of humerus
Origin:
Inferior angle of scapula, spinous process of lowest 6 thoracic vertebrae
Elbow
Brachialis
Insertion:
Tuberosity and coronoid process of ulna
Origin:
Distal 1/2 of anterior humerus
Triceps Brachii
Insertion:
Olecranon process of ulna
Origin:
Long Head
- Infraglenoid tubercle of scapula
Lateral Head
- Posterior surface of proximal half of humerus
Medial Head
- Posterior surface of distal half of humerus
Biceps Brachii
Insertion:
Radial tuberosity
Origin:
Short Head
- Coracoid process of scapula
Long Head
- Supraglenoid tubercle