Anatomy Flashcards
Trapezius
Elevates shoulders, rotates scapula to raise arm
Accessory nerve
Levator scapula
Elevates scapula
Dorsal scapular nerve
Rhomboid major and minor
Retracts and elevates scapula
Dorsal scapular nerve
Pectoralis minor
Pulls tip of shoulder down
Pectoral nerve
Pectoralis major
Adducts and medially rotates arm
Pectoral nerve
Serratus anterior
Protraction of scapula, holds down and allows to move forward in punching motion
Long thoracic nerve
Latissimus dorsi
Adduction, climbing motion
Thoracodorsal nerve
Deltoid
Abduction
Axillary nerve
Subscapularis
Rotator cuff
Internal rotation
Subscapular nerve
Supraspinatus
Rotator cuff
Initial abduction, external rotation
Suprascapular nerve
Infraspinatus
Rotator cuff
Medial, lateral, external rotation
Suprascapular nerve
Teres minor
Rotator cuff
Initial abduction, external rotation
Axillary nerve
Teres major
Internal rotation
Subscapular nerve
Triceps
Long head proximal insertion to bottom of glenoid fossa, short heads to humerus
Distal insertion to olecranon process of ulnar
Extension of forearm
Radial nerve
Biceps
Long head proximal insertion to top of glenoid fossa, short head to coracoid process
Distal insertion to radial tuberosity on radius
Flexion of arm and forearm, supination of forearm
Musculocutaneous nerve
Brachialis
Deep to biceps
Flexion of forearm
Musculocutaneous nerve
Supinator
Lateral, by elbow to radius
Supination
Radial nerve