Muscle O I A Flashcards
(66 cards)
Upper Trapezius
•A=scapular elevation and upper rotation
Middle Trapezius
•A=Scapular retraction
Lower Trapezius
•A=Scapular depression and upward rotation
Levator Scapula
•I: transverse process for first four cervical vertebrae
O:vertebral border of scapula between the superior angle and spine
A:Scapular elevation and downward rotation
Rhomboids
A:Scapular retraction,elevation and downward rotation
Serratus Anterior
A:Scapular protraction and upward rotation
Deltoid Anterior
A:shoulder abduction, flexion,internal rotation and horizontal adduction
Deltoid Middle
A:shoulder abduction
Pectoralis major
A: shoulder adduction, internal rotation,horizontal adduction
Pectoralis minor
A:Scapular depression,protraction,downward rotation and tilt
Latissimus dorsi
A: shoulder extension,adduction,internal rotation
Teres major
A:Shoulder extension,adduction,internal rotation
Supraspinatus
A: shoulder abduction;pulls head of humerus into glenoid cavity of scapula
Infraspinatus
A: shoulder external rotation,horizontal abduction
Teres minor
A: shoulder external rotation,horizontal abduction
Subscapularis
A: shoulder internal rotation
Brachialis
A:elbow flexion
Biceps brachii
A:Elbow flexion;forearm supination
Brachioradialis
A:elbow flexion
Triceps
A:elbow extension
Pronator teres
A:forearm pronation,assistive in elbow flexion
Pronator Quadratus
A:forearm pronation
Supinator
A:Forearm supination
Flexor Capri Ulnaris
A:wrist flexion, ulnar deviation