shoulder and scapula Flashcards
pectoralis major
o: anterior surface of medial half of clavicle
i: crest of greater tubercle of humerus
arm adduction
coracobrachialis
o: coracoid process of scapula
i: medial surface of humerus
arm adduction
teres minor
o: lateral border of scapula
i: greater tubercle of humerus
arm external rotation
infraspinatus
o: infraspinous fossa of scapula
i: greater tubercle of humerus
arm external rotation
subscapularis
o: subscapular fossa of scapula
i: lesser tubercle of humerus
arm internal rotation
trapezius
o: nuchal ligament
i: spine of scapula
rotation of scapula
rhomboid minor
o: nuchal ligament
i: medial border of scapula
Retracts scapula
rhomboid major
o: spinous process of vertebrae t2-t5
i: medial border of scapula
Retracts scapula
levator scapulae
o: transverse processes of vertebrae c1-c4
i: medial border of scapula
Elevates scapula
serratus anterior
o: ribs 1-9
i: medial border of scapula
Protracts scapula
pectoralis minor
o: anterior surface costal cartilage of ribs 3-5
i: medial border and coracoid process of scapula
stabilizes scapula
deltoid
o: lateral third of clavicle
i: deltoid tuberosity of humerus
Shoulder abduction
supraspinatus
o: supraspinous fossa of the scapula
i: greater tubercle of humerus
arm abduction
latissimus dorsi
o: inferior angle of scapula
i: inter-tubercular sulcus of the humerus
arm internal rotation
teres major
o: posterior and inferior angle of scapula
i: inter-tubercular sulcus of the humerus
arm adduction
