Lab 1 Practical Muscle innvervations and actions

Question 1

What is the trapezius innervation?

Answer 1

Spinal accessory Nerve, C1-C5 cord levels

Question 2

What is the latissimus dorsi innervation?

Answer 2

Thoracodorsal Nerve, ventral rami C6-C8

Question 3

What is the 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 scapular nerve, ventral ramus C5 plus Ventral ramus C4

Question 6

Splenius Capitis innervation?

Answer 6

N= Dorsal rami C3-C5

Question 7

Splenius capitis action?

Answer 7

A=Laterally Flex head and rotate face to side: bilaterally extend head.

Question 8

Splenius Cervicis innervation?

Answer 8

N= Dorsal rami C5-C7

Question 9

Splenius cervicis action?

Answer 9

A= Laterally flex and rotate neck; bilaterally extend neck

Question 10

Iliocostalis Lumborum innervation?

Answer 10

N= Dorsal rami lower T, all L

Question 11

Iliocostalis lumborum action?

Answer 11

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

Question 12

Iliocostalis thoracis innervation?

Answer 12

N= Dorsal rami T1-T6

Question 13

Iliocostalis thoracic action?

Answer 13

A= Extension, lateral flexion T spine

Question 14

Iliocostalis cervicis innervation?

Answer 14

N= dorsal rami T1, T2; rarely C8

.

Question 15

Iliocostalis cervicis action?

Answer 15

A= Extension, lateral flexion, rotation LOWER C spine

Question 16

Longissimus Thoracis innervation?

Answer 16

N=Dorsal rami T and L nerves

Question 17

Longissimus thoracis action?

Answer 17

A= Lateral flexion T spine and ribs;
bilaterally act in extension of T and; L spine,
hold T and L spine erect,
Lateral movement of Pelvis

Question 18

Longissimus cervicis innervation?

Answer 18

N= Dorsal rami C4-C8; T1-T2

Question 19

Longissimus cervicis action?

Answer 19

A= Lateral flexion of neck; bilaterally extend neck

Question 20

Longissimus capitis innervation?

Answer 20

N= dorsal rami C1-C3, sometimes C4

Question 21

Longissimus capitis action?

Answer 21

A= rotate and laterally flex head; bilaterally extend head

Question 22

Spinalis Thoracis innervation?

Answer 22

N= Dorsal rami T and upper L

Question 23

Spinalis thoracis action?

Answer 23

A=extend T spine

Question 24

Spinalis Cervicis innervation?

Answer 24

N= Dorsal rami C

Question 25

Spinalis cervicis action?

Answer 25

A= Lateral flexion and rotation of C spine; bilaterally extend neck

Question 26

Spinalis capitis innervation?

Answer 26

N= Dorsal rami lower C, upper T

Question 27

Spinalis capitis action?

Answer 27

A= Lateral flexion and rotation of head; bilaterally extend head

Question 28

Semispinalis Thoracis innervation?

Answer 28

N= Dorsal rami T1 -T6

Question 28

Semispinalis thoracis action.

Answer 28

A=Extension, rotation, and lateral flexion of upper T and Lower C spine; bilaterally extend T spine.

Question 29

Semispinalis Cervicis innervation?

Answer 29

N=dorsal rami C6-C8

Question 30

Semispenalis cervicis action?

Answer 30

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

Question 31

Semispinalis capitis innervation?

Answer 31

N= dorsal rami C1-C6

Question 31

Semispinalis capitis action?

Answer 31

A= turns face to side, bilaterally extends head (Neck inadvertently)

Question 32

Rectus capitis posterior major innervation?

Answer 32

N= Suboccipital nerve, dorsal ramus C1

Question 33

Rectus capitis posterior major action?

Answer 33

A= Turns face to side; bilaterally extends head.

Question 34

Rectus capitis posterior minor innervation?

Answer 34

N= Suboccipital nerve, dorsal ramus C1

Question 34

Rectus capitis posterior minor action?

Answer 34

A= Extends head

Question 35

Obliquus Capitis superior innervation?

Answer 35

N=suboccipital nerve, dorsal ramus C1

Question 36

Obliquus capitis superior action?

Answer 36

A= lateral flexion of head; bilaterally extends head

Question 37

Obliquus capitis inferior innervation?

Answer 37

N= suboccipital nerve, dorsal ramus C1

Question 37

Obliquus capitis inferior action?

Answer 37

A= turns face to side

Question 38

Quadratus Lumborum innervation?

Answer 38

N= Ventral rami T12, L1-L3 or L4

Question 39

Quadratus lumborum action?

Answer 39

A= Steadies origin of diaphragm;
when pelvis is fixed, it will laterally flex the L spine
bilaterally extends the L spine
stabilizes and depresses the 12th rib.

Question 40

Serratus posterior superior innervation?

Answer 40

N=intercostal nerves, ventral rami T2-T5

Question 40

Serratus posterior superior action?

Answer 40

A=elevate upper 5 ribs in inspiration

Question 41

Serratus posterior inferior innervation?

Answer 41

N= Intercostal nerves ventral rami T9-T11

subcostal nerve ventral ramus T12

Question 42

Serratus posterior inferior action?

Answer 42

A= draws lower 4 ribs down and back’ forced inspiration

Question 43

Longus colli innervation?

Answer 43

N= Ventral rami C2-C6, sometimes C7

Question 43

Longus Colli action?

Answer 43

A=Flexion and extension of neck, rotation to the contralateral side.

Question 44

Longus capitis innervation?

Answer 44

N= Ventral rami C1-C3

Question 45

Longus capitis action?

Answer 45

A= flex the head

Question 47

Rectus capitis anterior innervation?

Answer 47

N= ventral rami C1,C2

Question 48

Rectus capitis anterior action?

Answer 48

A= flex the head

Question 50

Rectus capitis lateralis innervation?

Answer 50

N= ventral rami C1,C2

Question 51

Rectus capitis lateralis action?

Answer 51

A= Laterally flex the head to ipsilateral side

Question 53

Anterior scalene innervation?

Answer 53

N= ventral rami C2- C6

Question 55

Middle scalene innervation?

Answer 55

N=ventral rami C3-C8

Question 57

Posterior scalene innervation?

Answer 57

N= ventral rami C6-C8

Question 59

Multifidus innervation?

Answer 59

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