Origin And Insertions

Question 1

Deltoid

Answer 1

O: lateral one third of clavicle, acromion, and spine of scapula

I: Deltoid tuberosity

Question 2

Trapezius:

Answer 2

O: External occipital protuberance, medial portion of superior nuchal line of the occiput, ligamentum nuchae and spinous processes of C-7 through T-12

I: Lateral one third of clavicle, acromion, and spine of the scapula

Question 3

Latissimus Dorsi

Answer 3

O: Spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumber aponeurosis and posterior iliac crest

I: Crest of the lesser tubercle of the humerus

Question 4

Teres Major

Answer 4

O: Lateral side of inferior angle and lower half of lateral border of the scapula

I: Crest of the lesser tubercle of the humerus

Question 5

Supraspinatus

Answer 5

O: Supraspinatus fossa of the scapula

I: Greater tubercle of the humerus

Question 6

Teres Minor

Answer 6

O: Superior half of lateral border of the scapula

I: Greater tubercle of the humerus

Question 7

Infraspinatus

Answer 7

O: Infraspinatus fossa of the scapula

I: Greater tubercle of the humerus

Question 8

Subscapularis

Answer 8

O: Subscapular fossa of the scapula

I: Lesser tubercle of the humerus

Question 9

Rhomboid Major

Answer 9

O: Spinous processes of T-2 through T-5

I: Medial border of the scapula between the spine of the scapula and inferior angle

Question 10

Rhomboid Minor

Answer 10

O: Spinous processes of C-7 and T-1

I: Upper portion of medial border of the scapula, across from spine of the scapula

Question 11

Levater Scapula

Answer 11

O: Transverse processes of first through fourth cervical vertebrae

I: Upper region of medial border and superior angle of scapula

Question 12

Serratus Anterior

Answer 12

O: Surface of upper eight or nine ribs

I: Anterior surface of medial border of the scapula

Question 13

Pectoralis Major

Answer 13

O: Medial half of the clavicle, sternum, and cartilage of first through sixth ribs

I: Crest of greater tubercle of humerus

Question 14

Pectoralis Minor

Answer 14

O: Third, fourth, and fifth ribs

I: Coracoid process of the scapula

Question 15

Subclavius

Answer 15

O: First rib and cartilage

I: Inferior, lateral aspect of the clavicle

Question 16

Biceps Brachii

Answer 16

O: Short head: Coracoid process of the scapula
Long head: Supraglenoid tubercle of the scapula

I: Tuberosity of the radius and aponeurosis of the biceps brachii

Question 17

Triceps Brachii

Answer 17

O: Long head: infraglenoid tubercle of the scapula
Lateral head: Posterior surface of proximal half of the humerus
Medial head: Posterior surface of distal half of the humerus

I: Olecranon process of the ulna

Question 18

Coracobrachialis

Answer 18

O: Coracoid process of the scapula

I: Medial surface of mid-humoral shaft