Dorsal Scapular

Question 1

Deltoid MA

Answer 1

clavicular: flexion and IR of arm

acromial: abducts arm

spinal: extends and ER arm

Question 2

deltoid PA

Answer 2

clavicle, acromian, and spine of scapula

Question 3

deltoid DA

Answer 3

deltoid tuberosity of humerus

Question 4

deltoid N

Answer 4

axillary nerve (C5, C6)

Question 5

pectoralis major MA

Answer 5

adducts and IR humerus
HADD of scapula (draws it anteriorly and inferiorly)

clavicular head: flexion of humerus
sternocostal head: extends it from the flexed position

Question 6

pectoralis major PA

Answer 6

clavicular head: clavicle
sternocostal head: sternum, superior 6 costal cartilages, external oblique muscle

Question 7

pectoralis major DA

Answer 7

lateral lip of the intertubercular sulcus

Question 8

pectoralis major N

Answer 8

lateral and medial pectoral nerves

clavicular head (C5, C6)
sternocostal head (C7, C8, T1)

Question 9

pectoralis minor MA

Answer 9

stabilizes scapula (draws it inferiorly and anteriorly - shrugging forward)

with scapula fixed: assists to elevate the thorax during forced inhalation

Question 10

pectoralis minor PA

Answer 10

third, fourth, and fifth ribs near their costal cartilage

Question 11

pectoralis minor DA

Answer 11

coracoid process

Question 12

pectoralis minor N

Answer 12

medial pectoris nerve (C8, T1); lateral pectoral nerve

Question 13

infraspinatus MA

Answer 13

ER of shoulder (IMPORTANT ER muscle!)
stabilize head of humerus in glenoid cavity

Question 14

infraspinatus PA

Answer 14

infraspinatus fossa

Question 15

infraspinatus DA

Answer 15

greater tubercle of humerus

Question 16

infraspinatus N

Answer 16

suprascapular nerve (C5, C6)

Question 17

teres major MA

Answer 17

(lats little brother)

adduct the shoulder
IR shoulder

Question 18

teres major PA

Answer 18

interior angle of the scapula

Question 19

teres major DA

Answer 19

medial lip of the intertubercular sulcus

Question 20

teres major N

Answer 20

lower subscapular nerve (C5, C6)

Question 21

supraspinatus MA

Answer 21

assists in abduction of the arm

Stabilize the head of the humerus in the glenoid cavity

Question 22

Supraspinatus PA

Answer 22

supraspinous fossa

Question 23

supraspinatus DA

Answer 23

greater tubercle of humerus

Question 24

supraspinatus N

Answer 24

suprascapular nerve (C4, C5, C6)

Question 25

teres minor MA

Answer 25

ER shoulder
stabilize the head of the humerus in the glenoid cavity

Question 26

teres minor PA

Answer 26

lateral border of the scapula

Question 27

teres minor DA

Answer 27

greater tubercle of the humerus

Question 28

teres minor N

Answer 28

axillary nerve (C5, C6)

Question 29

subscapularis MA

Answer 29

IR shoulder
stabilize the head of the humerus in the glenoid cavity

Question 30

subscapularis PA

Answer 30

subscapular fossa

Question 31

subscapularis DA

Answer 31

lesser tubercle of the humerus

Question 32

subscapularis N

Answer 32

upper and lower subscapular nerve (C5, C6, C7)

Question 33

serratus anterior MA

Answer 33

protracts the scapula
upwardly rotates the scapula
holds scapula against the thoracic wall

Question 34

serratus anterior PA

Answer 34

lateral parts of upper 8-9 ribs

Question 35

serratus anterior DA

Answer 35

medial border of the scapula

Question 36

serratus anterior N

Answer 36

long thoracic nerve (C5, C6, C7) - SALT!