Origins for Muscles of the Shoulder

Question 1

What is the anterior deltoid origin?

Answer 1

lateral third of the clavicle

Question 2

What is the middle deltoid origin?

Answer 2

acromion process

Question 3

What is the posterior deltoid origin?

Answer 3

spine of scapula

Question 4

What is the supraspinatus origin?

Answer 4

supraspinatus fossa of the scapula

Question 5

What is the pectoralis major clavicular portion origin?

Answer 5

medial third of clavicle

Question 6

What is the pectoralis major sternal portion origin?

Answer 6

sternum, costal cartilage of first 6 ribs

Question 7

What are the latissimus dorsi origins?

Answer 7

spinous processes of T7-L5, posterior surface of sacrum, iliac crest, and lower three ribs

Question 8

What is the teres major origin?

Answer 8

Axillary border of scapula near the inferior angle

Question 9

What is the teres minor origin?

Answer 9

Axillary border of scapula

Question 10

What is the infraspinatus origin?

Answer 10

infraspinous fossa of scapula

Question 11

What is the subscapularis origin?

Answer 11

subscapular fossa of the scapula

Question 12

What is the coracobrachialis origin?

Answer 12

coracoid process of the scapula