origins Flashcards
Trapezius
- external occipital protuberance 2. Ligamentum nuchae 3. spinous processes of C1-T12
Latissimus Dorsi
- spinous process of T7-L5 2. iliac crest 3. inferior angle of the scapula
Levator scapulae
transverse processes of the upper 3 or 4 cervical vertebrae
Rhomboid minor
spinous processes of C7 & T1
Rhomboid major
spinous processes of T2-T5
Serratus Anterior
Anterolateral surface of the upper 8 or 9 ribs
Deltoid
- anterior portion: lateral portion of the clavicle 2. middle portion: acromion process 3. posterior portion: scapular spine
Supraspinatus
supraspinous fossa
Infraspinatus
infraspinous fossa
Teres minor
middle half of the scapula’s lateral border
Teres major
lower 1/3rd of the scapula’s lateral border
Subscapularis
subscapular fossa
Subclavius
first rib
Pectoralis Major
- medial portion of clavicle 2. sternum at costal cartilages
Pectoralis Minor
outer and anterior surface of ribs 3-5 near cartilage
Coracobrachialis
coracoid process
Biceps Brachii
- long head: supraglenoid tubercle and glenohumeral labrum
- short head: coracoid process
Brachialis
lower half of anterior humerus
Triceps Brachii
- long head: infraglenoid tubercle
- lateral head: upper half of the posterior humerus
- medial head: lower 1/4th of posterior humerus
Anconeus
lateral epicondyle of the humerus