superficial muscles of the back

Question 1

Trapezius Origin

Answer 1

External occipital protuberance, superior nuchal line, ligamentum nuchae, and spines of C7-T12

Question 2

trapezius insertion

Answer 2

Spine of scapula, acromion, and lateral third of clavicle

Question 3

trapezius nerve

Answer 3

spinal accessory nerve; C3-C4

Question 4

trapezius action

Answer 4

adducts, rotates, elevates and depresses the scapula

Question 5

levator scapula origin

Answer 5

transverse processes of C1-C4

Question 6

levator scapula insertion

Answer 6

medial border of scapula

Question 7

levator scapula nerve

Answer 7

dorsal scapular nerve (C5); C3-C4

Question 8

levator scapula action

Answer 8

elevates scapula, rotates glenoid cavity

Question 9

rhomboid minor origin

Answer 9

spines of C7-T1

Question 10

rhomboid minor insertion

Answer 10

root of spine of scapula

Question 11

rhomboid minor nerve

Answer 11

dorsal scapular nerve (C5)

Question 12

rhomboid minor action

Answer 12

adducts scapula

Question 13

rhomboid major origin

Answer 13

spines of T2-T5

Question 14

rhomboid major insertion

Answer 14

medial border of scapula

Question 15

rhomboid major nerve

Answer 15

dorsal scapular nerve (C5)

Question 16

rhomboid major action

Answer 16

adducts scapula

Question 17

latissimus dorsi origin

Answer 17

spines of T7-T12, iliac crest, thoracodorsal fascia, ribs of 9-12

Question 18

latissimus dorsi insertion

Answer 18

floor of bicipital groove of humerus

Question 19

latissimus dorsi nerve

Answer 19

thoracodorsal nerve

Question 20

latissimus dorsi action

Answer 20

adducts, extends, rotates median arm, depresses scapula

Question 21

serratus posterior superior origin

Answer 21

Ligamentum nuchae, supraspinal ligament, and spines of C7-T3

Question 22

serratus posterior superior insertion

Answer 22

upper border of ribs of 2-5

Question 23

serratus posterior superior nerve

Answer 23

intercostal nerve (T1-T4)

Question 24

serratus posterior superior action

Answer 24

elevates ribs

Question 25

serratus posterior inferior origin

Answer 25

supraspinous ligament, spines T11-L2

Question 26

serratus posterior inferior insertion

Answer 26

lower border of ribs of 9-12

Question 27

serratus posterior inferior nerve

Answer 27

intercostal nerve (T9-T12)

Question 28

serratus posterior inferior action

Answer 28

depresses ribs