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III - review > cervical spinal nerves > Flashcards

cervical spinal nerves Flashcards

1
Q

Suboccipital nerve - where do axons come from?

A

Dorsal rami C1

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2
Q

Suboccipital nerve - muscular branches - functions?

A

sensory
postganglionic sympathetic (gray ramus)
motor (lmn)

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3
Q

Suboccipital nerve - innervation (5)

A 
semispinalis capitis 
inferior oblique
superior oblique 
rectus capitis posterior major 
rectus capitis posterior minor
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4
Q

Greater occipital nerve - 2 branches?

A

medial branch

lateral branch

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5
Q

Greater occipital nerve - where do axons come from?

A

Dorsal rami C2

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6
Q 
Greater occipital nerve - medial branch 
function / innervation?
A

sensory + postganglionic sympathetic (gray ramus)

- skin overlying back of head

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7
Q 
Greater occipital nerve - lateral branch - 
function / innervation
A

sensory + postganglionic sympathetic (gray ramus) + motor (lmn)

  • splenius capitis
  • longissimus capitis
  • semispinalis capitis
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8
Q

Greater occipital nerve - lateral branch - innervation (3)

A

splenius capitis
longissimus capitis
semispinalis capitis

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9
Q 
Dorsal rami C3 - Medial Branch (3rd occipital nerve)
function / innervation
A

sensory and postganglionic sympathetic (gray ramus)

- skin overlying suboccipital triangle

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10
Q 
Dorsal rami C3 - Lateral Branch 
function / innervation
A

sensory + postganglionic sympathetic (gray ramus) + motor (lmn)
- overlying neck muscles

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11
Q 
Dorsal rami C4-8 - Medial Branches
function / innervation
A

sensory + postganglionic sympathetic (gray rami commnicans)

- skin overlying cervical vertebrae

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12
Q 
Dorsal rami C4-8 - Lateral branches
function / innervation
A

sensory + postganglionic sympathetic (gray ramus) + motor (lmn)
- overlying neck muscles

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13
Q

Ventral rami of cervical vertebrae (c1-c4) make up the_________?

A

Cervical plexus
*note that C5 is included in the diagram in order to include the phrenic nerve but is not normally considered part of the cervical plexus

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14
Q

Cutaneous branches of Cervical Plexus (4)

A

lesser occipital nerve (c2)
great auricular nerve (c2,3)
transverse cervicle nerve (c2,3)
suprascapular nerve (c3,4)

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15
Q

sensory branches of cervical plexus (non-cutaneous) (2)

A

proprioceptive branches to trapezius muscle

proprioceptive branches to the sternocleidomastoid muscle

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16
Q

muscular branches of Cervical Plexus (6)

A 
nerve to geniohyoid muscle (c1)
nerve to thyrohyoid muscle (c1)
superior root of ansa cervicalis (c1)
inferior root of ansa cervicalis (c2,3)
phrenic nerve (c3-5)
miscellaneous muscular branches
17
Q

All of the cutaneous and non-cutaneous sensory branches of the cervical plexus have the following axonal functions

A 
sensory
postganglionic sympathetic (gray ramus / gray rami cummunicans)
18
Q

Lesser occipital nerve - origin and innervation

A

Ventral rami C2

Skin overlying the posterior-lateral aspect of the head and upper neck

19
Q

Great auricular nerve - origin and innervation

A

Ventral rami C2,3

Skin overlying the upper SCM, lower parotid region, and ear

20
Q

Transverse cervical nerve - origin and innervation

A

Ventral rami C2,3

Skin overlying the lower SCM and anterior neck

21
Q

Suprascapular nerve - origin and innervation

A

Ventral rami C3,4

Skin overlying the lower half of the posterior triangle of the neck

22
Q

All muscular branches of the cervical plexus have the following axonal functions

A

sensory
postganglionic sympathetic (Gray ramus / gray rami communicans)
motor (lmn)

23
Q

Nerve to the geniohyoid muscle - origin and innervation

A

Ventral rami C1

Geniohyoid muscle

24
Q

Nerve to the thyrohyoid muscle - origin and innervation

A

Ventral rami C1

thyrohyoid muscle

25
Q

Superior root of the ansa cervicalis - origin and innervation

A

Ventral rami C1

Superior belly of omohyoid muscle

26
Q

Inferior root of the ansa cervicalis - origin and innervation

A

Ventral rami C2,3
Sternohyoid
Sternothyroid
Inferior belly of omohyoid muscle

27
Q

Phrenic nerve - origin and innervation

A

Ventral rami C3-5
Diaphragm
(other under unit 2)

28
Q

Miscellaneous muscular branches of the cervical plexus innervate (5)

A 
longus capitis
longus coli 
anterior scalene 
middle scalene
posterior scalene

III - review (9 decks)

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