Practical 1 Innervations and Actions

Question 0

Latissimus Dorsi- Innervation

Answer 0

thoracodorsal nerve, ventral rami C6-C8

Question 1

Trapezius- Innervation

Answer 1

spinal accessory nerve, C1-C5 cord levels

Question 2

Levator Scapulae- Innervation

Answer 2

dorsal scapular nerve, ventral ramus C5

PLUS ventral rami C3, C4

Question 3

Rhomboid Major- Innervation

Answer 3

dorsal scapular nerve, ventral ramus C5

PLUS ventral ramus C4

Question 4

Rhomboid Minor- Innervation

Answer 4

dorsal scapular nerve, ventral ramus C5

PLUS ventral ramus C4

Question 5

Splenius Capitis- Innervation

Answer 5

dorsal rami C3-C5

Question 6

Splenius Cervicis- Innervation

Answer 6

dorsal rami C5-C7

Question 7

Iliocostalis Lumborum- Innervation

Answer 7

dorsal rami lower T, all L

Question 8

Iliocostalis Thoracis- Innervation

Answer 8

dorsal rami T1-T6

Question 9

Iliocostalis Cervicis- Innervation

Answer 9

dorsal rami T1, T2; rarely C8

Question 10

Longissimus Thoracis- Innervation

Answer 10

dorsal rami T & L nerves

Question 11

Longissimus Cervicis- Innervation

Answer 11

dorsal rami C4-C8; T1-T2

Question 12

Longissimus Capitis- Innervation

Answer 12

dorsal rami C1-C3, sometimes C4

Question 13

Spinalis Thoracis- Innervation

Answer 13

dorsal rami T & upper L

Question 14

Spinalis Cervicis- Innervation

Answer 14

dorsal rami C

Question 15

Spinalis Capitis- Innervation

Answer 15

dorsal rami lower C, upper T

Question 16

Semispinalis Thoracis- Innervation

Answer 16

dorsal rami T1-T6

Question 17

Semispinalis Cervicis- Innervation

Answer 17

dorsal rami C6-C8

Question 18

Semispinalis Capitis- Innervation

Answer 18

dorsal rami C1-C6

Question 19

Multifidus- Innervation

Answer 19

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

Question 20

Rectus Capitis Posterior Major- Innervation

Answer 20

suboccipital nerve, dorsal ramus C1

Question 21

Rectus Capitis Posterior Minor- Innervation

Answer 21

suboccipital nerve, dorsal ramus C1

Question 22

Obliquus Capitis Superior- Innervation

Answer 22

suboccipital nerve, dorsal ramus C1

Question 23

Obliquus Capitis Inferior- Innervation

Answer 23

suboccipital nerve, dorsal ramus C1

Question 24

Quadratus Lumborum- Innervation

Answer 24

ventral rami T12, L1-L3 or L4

Question 25

Serratus Posterior Superior- Innervation

Answer 25

Intercostal Nerves, ventral rami T2-T5

Question 26

Serratus Posterior Inferior- Innervation

Answer 26

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

Question 27

Longus Colli- Innervation

Answer 27

ventral rami C2-C6, sometimes C7

Question 28

Longus Capitis- Innervation

Answer 28

ventral rami C1-C3

Question 29

Rectus Capitis Anterior- Innervation

Answer 29

ventral rami C1, C2

Question 30

Rectus Capitis Lateralis- Innervation

Answer 30

ventral rami C1, C2

Question 31

Anterior Scalene- Innervation

Answer 31

ventral rami C2-C6

Question 32

Middle Scalene- Innervation

Answer 32

ventral rami C3-C8

Question 33

Posterior Scalene- Innervation

Answer 33

ventral rami C6-C8

Question 34

Splenius Capitis- Action

Answer 34

Laterally flex head & rotate face to side; bilaterally extend head

Question 35

Splenius Cervicis- Action

Answer 35

Laterally flex & rotate neck; bilaterally extend neck

Question 36

Iliocostalis Lumborum- Action

Answer 36

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

Question 37

Iliocostalis Thoracis- Action

Answer 37

Extension, lateral flexion T spine

Question 38

Iliocostalis Cervicis- Action

Answer 38

Extension, lateral flexion, rotation lower C spine

Question 39

Longissimus Thoracis- Action

Answer 39

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

Question 40

Longissimus Cervicis- Action

Answer 40

lateral flexion of neck; bilaterally extend neck

Question 41

Longissimus Capitis- Action

Answer 41

rotate & laterally flex head; bilaterally extend head

Question 42

Spinalis Thoracis- Action

Answer 42

extend T spine

Question 43

Spinalis Cervicis- Action

Answer 43

lateral flexion & rotation of C spine; bilaterally extend neck

Question 44

Spinalis Capitis- Action

Answer 44

lateral flexion & rotation of head; bilaterally extend head

Question 45

Semispinalis Thoracis- Action

Answer 45

Extension, rotation, & lateral flexion of upper T & lower spine; bilaterally extend T spine

Question 46

Semispinalis Cervicis- Action

Answer 46

Extension, rotation & lateral flexion of C spine; bilaterally extend neck

Question 47

Semispinalis Capitis- Action

Answer 47

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

Question 48

Rectus Capitis Posterior Major- Action

Answer 48

turns face to side; bilaterally extends head

Question 49

Rectus Capitis Posterior Minor- Action

Answer 49

Extends head

Question 50

Obliquus Capitis Superior- Action

Answer 50

lateral flexion of head; bilaterally extends head

Question 51

Obliquus Capitis Inferior- Action

Answer 51

turns face to side

Question 52

Quadratus Lumborum- Action

Answer 52

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

Question 53

Serratus Posterior Superior- Action

Answer 53

elevate upper 5 ribs in inspiration

Question 54

Serratus Posterior Inferior- Action

Answer 54

draws lower 4 ribs down & back; forced inspiration

Question 55

Longus Colli- Action

Answer 55

flexion & extension of neck; rotation to the contralateral side

Question 56

Longus Capitis- Action

Answer 56

flex the head

Question 57

Rectus Capitis Anterior- Action

Answer 57

flex the head

Question 58

Rectus Capitis Lateralis- Action

Answer 58

laterally flex the head to ipsilateral side