GLENOHUMERAL JOINT

Question 0

PEC MAJOR

Answer 0

ORIGIN: Medial 2/3 of clavicle, Sternum, and costal cartilage of ribs 1-6

INSERTION: Lateral lip of the intertubercular (bicipital) groove

INNERVATION: Medial and Lateral Pectoral Nerve (C7-8, T1) and C5-7)

Question 1

DELTOID

Answer 1

ORIGIN: Lateral 1/3 of the clavicle, acromion, Spine of the scapula

INSERTION: Deltoid Tuberosity

INNERVATION: Axillary Nerve (C5-6)

Question 2

LATISSIMUS DORSI

Answer 2

ORIGIN: Spinous process of T6-12, Lumbar and Sacral Spinous Processes, Posterior Iliac Crest, Thoracolumbar fascia
INSERTION: Medial lip and floor of Bicipital (intertubercular) groove

INNERVATION: Thoracodorsal Nerve (C6-8)

Question 3

TERES MAJOR

Answer 3

ORIGIN: Inferior angle of the scapula

INSERTION: Medial lip of the intertubercular (bicipital) groove

INNERVATION: Lower subscapular nerve (C5-6)

Question 4

SUBCLAVIUS

Answer 4

ORIGIN: 1st Rib

INSERTION: Undersurface of the clavicle

INNERVATION: Nerve to Subclavius (C5-6)

Question 5

CORACOBRACHIALIS

Answer 5

ORIGIN: Coracoid process

INSERTION: Middle 1/3 of the medial humerus

INNERVATION: Musculocutaneous Nerve (C5-7)

Question 6

SUPRASPINATUS

Answer 6

ORIGIN: Supraspinatus fossa

INSERTION: Greater tubercle of the humerus

INNERVATION: Suprascapular Nerve (C5-6)

Question 7

INFRASPINATUS

Answer 7

ORIGIN: Infraspinatus fossa

INSERTION: Greater tubercle of the humerus (below supraspinatus)

INNERVATION: Suprascapular Nerve (C5-6)

Question 8

TERES MINOR

Answer 8

ORIGIN: Upper 2/3 of the axillary border of the scapula

INSERTION: Greater tubercle of the humerus (below infraspinatus)

INNERVATION: Axillary Nerve (C5-6)

Question 9

SUBSCAPULARIS

Answer 9

ORIGIN: Subscapular fossa

INSERTION: Lesser tubercle of the humerus

INNERVATION: Upper and lower subscapular Nerve (C5-6)