Neck

Question 1

Origin of Platysma

Answer 1

fascia covering superior part of pectoralis major

Question 2

insertion of platysma

Answer 2

base of mandible, skin of lower part of face

Question 3

action of platysma

Answer 3

assist to depress the mandible
tighten the fascia of the neck
draw down corners of the mouth

Question 4

innervation of platysma

Answer 4

CN VII (facial nerve)

Question 5

origin of sternocleidomastoid

Answer 5

sternal head - top of manubrium

clavicular head - medial clavicle

Question 6

insertion of sternocleidomastoid

Answer 6

mastoid process of temporal bone and superior nuchal line of occiput

Question 7

action of sternocleidomastoid

Answer 7

unilaterally - laterally flex the head and neck to the same side, rotate the head and neck to the opposite side

bilaterally - flex the neck, assist to elevate the ribcage during inhalation

Question 8

innervation of sternocleidomastoid

Answer 8

CN XI (spinal accessory nerve), C2, C3

Question 9

origin of anterior scalene

Answer 9

TP of 3rd to 6th cervical vertebrae

Question 10

insertion of anterior scalene

Answer 10

1st rib

Question 11

action of anterior scalene

Answer 11

unilaterally - with ribs fixed: laterally flex head and neck to the same side, rotate head and neck to opposite side

bilaterally - elevate ribs during inhalation, flex the head and neck

Question 12

innervation of anterior scalene

Answer 12

C3-8

Question 13

origin of posterior scalene

Answer 13

TP of 6th to 7th cervical vertebrae

Question 14

insertion of posterior scalene

Answer 14

2nd rib

Question 15

action of posterior scalene

Answer 15

unilaterally - with ribs fixed: laterally flex head and neck to the same side, rotate head and neck to opposite side

bilaterally - elevate ribs during inhalation

Question 16

innervation of posterior scalene

Answer 16

C3 - 8

Question 17

origin of middle scalene

Answer 17

TP C2 - C7

Question 18

insertion of middle scalene

Answer 18

1st rib

Question 19

action of middle scalene

Answer 19

unilaterally - with ribs fixed: laterally flex head and neck to the same side, rotate head and neck to opposite side

bilaterally - elevate ribs during inhalation

Question 20

innervation of middle scalene

Answer 20

C3-C8

Question 21

origin of splenius capitis

Answer 21

ligamentum nuchae and SP of C7 - T4

Question 22

insertion of splenius capitis

Answer 22

mastoid process and superior nuchal line of occiput

Question 23

action of spelnius capitis

Answer 23

unilaterally - rotate and laterally flex the head and neck to the same side

bilaterally - extend the head and neck

Question 24

innervation of splenius capitis

Answer 24

cervical nerves

Question 25

origin of splenius cervicis

Answer 25

SP of T3 - T6

Question 26

insertion of splenius cervicis

Answer 26

TP of C1 - C3

Question 27

action of splenius cervicis

Answer 27

unilaterally - rotate and laterally flex the head and neck to the same side bilaterally - extend the head and neck

Question 28

innervation of splenius cervicis

Answer 28

cervical nerves

Question 29

origin of semispinalis capitis

Answer 29

TP of C4 - T5

Question 30

insertion of semispinalis capitis

Answer 30

between the superior and inferior nuchal line of the occiput

Question 31

action of semispinalis capitis

Answer 31

extend the vertebral column and head

Question 32

innervation of semispinalis capitis

Answer 32

cervical nerves

Question 33

origin of semispinalis cervicis

Answer 33

TP of T1 - T5

Question 34

insertion of semispinalis cervicis

Answer 34

SP of C1 - C5

Question 35

action of semispinalis cervicis

Answer 35

extend the vertebral column

Question 36

innervation of semispinalis cervicis

Answer 36

cervical nerves

Question 37

origin of rectus capitis posterior major

Answer 37

SP of C2 (axis)

Question 38

insertion of rectus capitis posterior major

Answer 38

inferior nuchal line of occiput

Question 39

action of rectus capitis posterior major

Answer 39

rock and tilt head back into extension rotate head to the same side

Question 40

innervation of rectus capitis posterior major

Answer 40

suboccipital nerve

Question 41

origin of rectus capitis posterior minor

Answer 41

tubercle of the posterior arch of C1 (atlas)

Question 42

insertion of rectus capitis posterior minor

Answer 42

inferior nuchal line of occiput

Question 43

action of rectus capitis posterior minor

Answer 43

rock and tilt head back into extension

Question 44

innervation of rectus capitis posterior minor

Answer 44

suboccipital nerve

Question 45

origin of oblique capitis superior

Answer 45

TP of atlas (C1)

Question 46

insertion of oblique capitis superior

Answer 46

between nuchal lines of occiput

Question 47

action of oblique capitis superior

Answer 47

rock and tilt head back into extension laterally flex the head to the same side

Question 48

innervation of oblique capitis superior

Answer 48

suboccipital nerve

Question 49

origin of oblique capitis inferior

Answer 49

SP of C2 (axis)

Question 50

insertion of oblique capitis inferior

Answer 50

TP of C1 (atlas)

Question 51

action of oblique capitis inferior

Answer 51

rotate head to the same side

Question 52

innervation of oblique capitis inferior

Answer 52

suboccipital nerve