Muscles, innervations and actions

Question 1

Trapezius innervation

Answer 1

spinal accessory nerve, C1-C5 cord levels

Question 2

Latissimus dorsi innervation

Answer 2

thoracodorsal nerve, ventral rami C6-C8

Question 3

Levator Scapulae innervation

Answer 3

dorsal scapular nerve, ventral ramus C5 plus ventral rami C3, C4

Question 4

Rhomboid Major innervation

Answer 4

dorsal scapular nerve, ventral ramus C5 plus ventral ramus C4

Question 5

Rhomboid Minor innervation

Answer 5

dorsal scapularis nerve, ventral ramus C5 plus ventral ramus C4

Question 6

Splenius Capitis innervation

Answer 6

dorsal rami C3-C5

Question 7

Splenius Cervicis innervation

Answer 7

dorsal rami C5-C7

Question 8

Iliocostalis Lumborum innervation

Answer 8

dorsal rami lower T, all L

Question 9

Iliocostalis Thoracis innervation

Answer 9

drosal rami T1-T6

Question 10

Iliocostalis Cervicis innervation

Answer 10

dorsal rami T1, T2; rarely C8

Question 11

Longissimus Thoracis innervation

Answer 11

dorsal rami T and L nerves

Question 12

Longissimus Cervicis innervation

Answer 12

dorsal rami C4-C8; T1-T2

Question 13

Longissimus Capitis innervation

Answer 13

dorsal rami C1-C3; sometimes C4

Question 14

Spinalis Thoracis innervation

Answer 14

dorsal rami T and upper L

Question 15

Spinalis Cervicis innervation

Answer 15

dorsal rami C

Question 16

Spinalis Capitis innervation

Answer 16

dorsal rami T1-T6i lower C, upper T

Question 17

Semispinalis Thoracis innervation

Answer 17

dorsal rami T1-T6

Question 18

Semispinalis Cervicis innervation

Answer 18

dorsal rami C6-C8

Question 19

Semispinalis Capitis innervation

Answer 19

dorsal rami C1-C6

Question 20

Multifidis innervation

Answer 20

dorsal rami C3-C8, T1-T12, L1-L5, sometimes S1

Question 21

Rectus Capitis Posteroir Major innervation

Answer 21

supoccipital nerve, dorsal ramus C1

Question 22

Rectus capitis Posteroir Minor innervation

Answer 22

suboccipital nerve, dorsal ramus C1

Question 23

Obliquus Capitis Superior innervation

Answer 23

suboccipital nerve, dorsal ramus C1

Question 24

Obliquus Capitis Inferior innervation

Answer 24

suboccipital nerve, dorsal ramus C1

Question 25

Quadratus Lumborum innervation

Answer 25

ventral rami T12, L1-L3 or L4

Question 26

Serratus Posterior Superior innervation

Answer 26

intercostal nerves; ventral rami T2-T5

Question 27

Serratus Posterior Inferior innervation

Answer 27

intercostal nerves, ventral rami T9-T11 | subcostal nerve, ventral ramus T12

Question 28

Longus Colli innervation

Answer 28

ventral rami C2-C6, sometimes C7

Question 29

Longus Capitis innervation

Answer 29

ventral rami C1-C3

Question 30

Rectus Capitis Anterior innervation

Answer 30

ventral rami C1, C2

Question 31

Rectus Capitis Lateralis innervation

Answer 31

ventral rami C1, C2

Question 32

Anterior Scalene innervation

Answer 32

ventral rami C2-C6

Question 33

Middle Scalene innervation

Answer 33

ventral rami C3-C8

Question 34

Posteroir Scalene innervation

Answer 34

ventral rami C6-C8

Question 35

Splenius Capitis action

Answer 35

laterally flex head and rotate face to side; bilaterally extend head

Question 36

Splenius Cervicis action

Answer 36

Laterally flex and rotate neck; bilaterally extend neck

Question 37

Iliocostalis Lumborum action

Answer 37

Extension, lateral flexion, rotation of L spine; lateral movement of pelvis

Question 38

Iliocostalis Thoracis action

Answer 38

Extension, lateral flexion T spine

Question 39

Iliocostalis Cervicis action

Answer 39

extension, lateral flexion, rotation lower C spine

Question 40

Longissimus Thoracis action

Answer 40

lateral flexion T spine and ribs (L spine inadvertently); bilaterally act in extension of T and L spine, hold T and L spine erect, (increases L lordosis); lateral movement of pelvis

Question 41

Longissimus Cervicis action

Answer 41

lateral flexion of neck; bilaterally extend neck

Question 42

Longissimus Capitis action

Answer 42

rotate and laterally flex head; bilaterally extend head

Question 43

Spinalis Thoracis action

Answer 43

extend T spine

Question 44

Spinalis Cervicis action

Answer 44

lateral flexion and rotation of C spine; bilaterally extend neck

Question 45

Spinalis Capitis action

Answer 45

lateral flexion and rotation of head; bilaterally extend head

Question 46

Semispinalis Thoracis action

Answer 46

extension, rotation and lateral flexion of upper T and lower C spine; bilaterally extend T spine

Question 47

Semispinalis Cervicis action

Answer 47

extension, rotation, and lateral flexion of C spine; bilaterally extend neck

Question 48

Semispinalis Capitis action

Answer 48

turns face to side; bilaterally extends head (neck inadvertently)

Question 49

Rectus Capitis Posterior Major action

Answer 49

turns face to side; bilaterally extends head

Question 50

Rectus Capitis Posterior Minor

Answer 50

extends head

Question 51

Obliquus Capitis Superior

Answer 51

lateral flexion of head; bilaterally extends head

Question 52

Obliquus Capitis Inferior

Answer 52

turns face to side

Question 53

Quadtatus Lumborum

Answer 53

steadies origin of diaphragm; when pelvis is fixed, its will laterally flex the L spine; bilaterally extends the L spine; stabilizes and depresses the 12th rib

Question 54

Serratus Posterior Superior

Answer 54

elevate upper 5 ribs in inspiration

Question 55

Serratus Posterior Inferior

Answer 55

draws lower 4 ribs down and back; forced inspiration

Question 56

Longus Colli

Answer 56

flexion and extension of neck; rotation ot the contralateral side

Question 57

Longus Capitis

Answer 57

flex the head

Question 58

Rectus Capitis Anterior

Answer 58

flex the head

Question 59

Rectus Capitis Lateralis

Answer 59

laterally flex the head to ipsilateral side