MOINA Shoulde Region

Question 1

Pectoralis major Origin

Answer 1

Clavicle, sternum, and upper six costal cartilages

Question 2

Pectoralis major Insertion

Answer 2

Lateral lip of bicipital groove of humerus

Question 3

Pectoralis major Nerve Supply

Answer 3

Medial and lateral pectoral nerves from brachial plexus

Question 4

Pectoralis major Action

Answer 4

Adducts arm and rotates it medially; clavicular fibers also flex arm

Question 5

Pectoralis minor origin

Answer 5

3rd, 4th, and 5th ribs

Question 6

Pectoralis minor insertion

Answer 6

Coracoid process of scapula

Question 7

Pectoralis minor nerve supply

Answer 7

Medial pectoral nerve from brachial plexus

Question 8

Pectoralis minor action

Answer 8

Depresses point of shoulder; if the scapula is fixed, it elevates the ribs of origin

Question 9

Subclavius origin

Answer 9

1st costal cartilage

Question 10

Subclavius insertion

Answer 10

Clavicle

Question 11

Subclavius nerve supply

Answer 11

Nerve to subclavius from upper trunk of brachial plexus

Question 12

Subclavius action

Answer 12

Depresses the clavicle and steadies this bone during movements of the shoulder girdle

Question 13

Serratus anterior origin

Answer 13

Upper eight ribs

Question 14

Serratus anterior insertion

Answer 14

Medial border and inferior angle of scapula

Question 15

Serratus anterior nerve supply

Answer 15

Long thoracic nerve

Question 16

Serratus anterior action

Answer 16

Draws the forward anterior around the thoracic wall; rotates scapula

Question 17

Trapezius origin

Answer 17

Occipital bone, ligamentum nuchae, spine of 7th cervical vertebra, spines of all thoracic vertebrae

Question 18

Trapezius insertion

Answer 18

Upper fibers into lateral third of clavicle; middle and lower fibers into acromion and spine of scapula

Question 19

Trapezius nerve supply

Answer 19

Spinal part of accessory nerve (motor) and C3 and 4 (sensory)

Question 20

Trapezius action

Answer 20

Upper fibers elevate the scapula; middle fibers pull scapula medially; lower fibers pull medial border of scapula downward

Question 21

Latissimus dorsi origin

Answer 21

Iliac crest, lumbar fascia, spines of lower six thoracic vertebrae, lower three or four ribs, and inferior angle of scapula

Question 22

Latissimus dorsi insertion

Answer 22

Floor of bicipital groove of humerus

Question 23

Latissimus dorsi nerve supply

Answer 23

Thoracodorsal nerve

Question 24

Latissimus dorsi action

Answer 24

Extends, adducts, and medially rotates the arm

Question 25

Levator scapulae origin

Answer 25

Transverse processes of 1st four cervical vertebrae

Question 26

Levator scapulae insertion

Answer 26

Medial border of scapula

Question 27

Levator scapulae nerve supply

Answer 27

C3 and 4 and dorsal

scapular nerve

Question 28

Levator scapulae action

Answer 28

Raises medial border of scapula

Question 29

Rhomboid minor origin

Answer 29

Ligamentum nuchae and spines of 7th cervical and 1st thoracic vertebrae

Question 30

Rhomboid minor insertion

Answer 30

Medial border of scapula

Question 31

Rhomboid minor nerve supply

Answer 31

Dorsal scapular nerve

Question 32

Rhomboid minor action

Answer 32

Raises medial border of scapula upward and medially

Question 33

Rhomboid major origin

Answer 33

Second to 5th thoracic spines

Question 34

Rhomboid major insertion

Answer 34

Medial border of the scapula

Question 35

Rhomboid major nerve supply

Answer 35

Dorsal scapular nerve

Question 36

Rhomboid major action

Answer 36

Raises medial border of scapula upward and medially