MUSCLE OF THE GH JOINT Flashcards
DELTOID: O,I
O: lateral 1/3 of clavicle, acromion process and spine of scapula
I: deltoid tuberosity of humerus
DELTOID: A,N
A: ABD (all), flex, IR, horizontally flexes, extends, IR and horizontally extends the arm at the GH joint
(RMA: DOWNWARDLY rotates the scapula at the scapulocostal joints)
N: axillary n.
CORACOBRACHIALIS: O,I
O: coracoid process of the scapula
I: middle 1/3 of the medial shaft of the humerus
CORACOBRACHIALIS: A,N
A: flexes and ADD the arm at the GH joint
N: musculocutaneous n.
PEC MAJOR: O,I
O: medial 1/2 of the clavicle, sternum, costal cartilages of ribs 1-7 (and aponeurosis of the external abdominal oblique)
I: lateral lip of the bicipital groove of the humerus
PEC MAJOR: A,N
A: ADD, IR, Flex, extends arm at the GH joint
N: medial and lateral pectoral nerves
LATISSIUMUS DORSI: O,I
O: SP’s of T7-L5, posterior sacrum, and posterior iliac crest - all via the thoracolumbar fascia
I: medial lip of the bicipital groove of the humerus
LATISSIUMUS DORSI: A,N
A: IR, ADD, and Extends the arm at the GH joint
N: thoracodorsal n.
TERES MAJOR: O,I
O: inferior angle and inferior lateral border of the scapula
I: medial lip of the bicipital groove of the humerus
TERES MAJOR: A,N
A: IR, ADD and extends the arm at the GH joint
N: lower subscapular nerve
SUPRASPINATUS: O,I
O: supraspinous fossa of the scapula
I: superior facet of the greater tubercle of the humerus
SUPRASPINATUS: A,N
A: ABD and flexes the arm at the GH joint
N: suprascapular nerve
INFRASPINATUS: O,I
O: infraspinous fossa of the scapula
I: middle facet of the greater tubercle of the humerus
INFRASPINATUS: A,N
A: ER the arm ath the GH joint
N: suprascapular n.
TERES MINOR: O,I
O: superior 2/3 of the lateral border of the scapula
I: inferior facet of the greater tubercle of the humerus
