Prime Movers of the Scapula/Shoulder Flashcards
(26 cards)
What’re the two movements of the infraspinatus?
shoulder external rotation and horizontal abduction
What is the origin of the infrapsinatus?
infraspinous fossa of the scapula
What is the insertion of the infraspinatus?
greater tubercle of the humerus
What is the movement of the supraspinatus?
assists with shoulder abduction
What is the origin of the supraspinatus?
supraspinous fossa of the scapula
What is the insertion of the supraspinatus ?
greater tubercle of the humerus
What’re the two movements of the rhomboid major?
adduction and rotation of the scapula downward
What is the origin of the rhomboid major?
T2-T5
What is the insertion of the rhomboid major?
lower half of the posterior medial border of the scapula
What are the two movements of the rhomboid minor?
adduction and scapular downward rotation
what is the origin of the rhomboid minor?
C7-T1
What is the insertion of the rhomboid minor?
medial border of the scapula at the level of the spine
What’re the two movements of the Pectorlais major at the humerus ?
adduction and internal rotation
What’re the two movements of the pec major at the scapula?
draws anteriorly and inferiorly
what is the origin of the pec major at the clavicular head?
anterior surface of medial half of clavicle
what are the four origins of the pec major at the sternocostal head ?
anterior surface of the sternum and superior six costal cartilages and the aponeurosis of the external oblique.
what is the insertion of the pec major?
lateral lip of the biccipial groove of the humerus
What is the movement of the subscapularis?
shoulder internal rotation
what is the origin of the subscapularis?
subscapular fossa of the scapula
what is the insertion of the subscapularis ?
lesser tubercle of the humerus
what is the movement of the coracobrachialis ?
assists with flexion and adduction of the shoulder
What is the origin of the coracobrachialis?
coracoid process of the scapula
what is the insertion of the coracobrachialis ?
medial surface of the humerus near the mid-point
What is the movement of the anterior deltoid?
shoulder flexion
