SHOULDER MUSCLES LIST Flashcards
actions of supraspinatus
abducts arm
actions of infraspinatus
adducts and laterally rotates arm
actions of teres major
extends, adducts and medially rotates arm
actions of deltoid
flex and medially rotate arm. Prime mover of arm abduction. Extend and laterally rotate arm
actions of subscapularis
medially rotates arm
actions of pectorals major
agonist of arm flexion; also adducts and medially rotates arm
actions of trapezius
elevate and superiorly rotate scapula, retract and depress scapula
actions of latissimus dorsi
agonist of arm extension, also adducts and medially rotates arm
actions of teres minor
adducts and laterally rotates arm
origins of supraspinatus
supraspinous fossa of scapula
origins of infraspinatus
infraspinous fossa of scapula
origins of teres major
posterior aspect of inferior angle of scapula
origins of teres minor
lateral border of scapula
origins of deltoid
clavicle, acromion and spine of scapula
origins of subscapularis
subscapular fossa
origins of pectoralis major
anterior border of medial half of clavicle, anterior surface of sternum, superior six costal cartilages
origins of pectoralis minor
3-5 rib
origins of rhomboid major
spines process of T2-T5
origins of rhomboid minor
nuchal ligaments of and spinous process of C& and T1
origins of trapezius
spinous process of C1-T12
origins of latissimus dorsi
spinous process of T7-T5, thoracolumbar fascia, iliac crest, inferior 3 or 4 ribs, inferior angle of scapula
insertions of supraspinatus
superor facet of greater tubercle of humerus
insertions of infraspinatus
middle facet of greater tubercle of humerus
insertions of teres major
medial lip of inter tubercular sulcus of humerus
insertions of teres minor
inferior facet of greater tubercle of humerus
insertions of deltoid
deltoid tuberosity
insertions of subscapularis
lesser tubercle of humerus
insertions of pectoralis major
lateral lip of bicipital groove of humerus
insertions of pectoralis minor
coracoid process
insertions of rhomboid major
medial border of scapula
insertions of rhomboid minor
medial border of scapula
insertions of trapezius
external occipital protuberance, nuchal ligament, medial superior nuchal line, posterior border of lateral third of the clavicle, acromion process, spine of scapula
insertions of latissimus dorsi
intertubercular groove of humerus