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Flashcards in (7) Cranial Nerves Deck (169)
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1

mnemonic to remember cranial nerve names

On = Olfactory
Occasion= Optic
Our= Oculomotor
Trusty = Trochlear
Truck= Trigeminal
Acts = Abducens
Funny= Facial
Very= Vestibulocochlear
Good= Glossopharyngeal
Vehicle= Vagus
Any= Accessory
How= Hypoglossal

2

mnemonic to remember sensory/motor/both of cranial nerves

Some= olfactory
Say= optic
Money= oculomotor
Matters= trochlear
But= trigeminal
My= abducens
Brother= facial
Says= vestibulocochlear
Big= glossopharyngeal
Brains= vagus
Matter= accessory
Most= hypoglossal

3

3 different types of nerves

sensory (afferent) vs motor (efferent)
somatic vs visceral
general sensory vs special sensory

4

general sensory vs special sensory example

general= pain, temperature, touch, proprioception

special= vision, hearing, smell (NOT TASTE)

5

6 nerve types

somatic sensory (Ss)-- sensations from face
special sensory (Sp) -- smell, vision, hearing
somatic motor (Sm)-- extraocular muscles (innervate skeletal muscle)

Visceral sensory (Vi)-- gut distension, taste
visceral motor (A)-- salivary gland
pharyngeal (P) -- facial muscle

6

most skeletal muscle of the body is derived from...

myotomes

7

innervation of myotomes is

somatic motor

8

some skeletal muscle in the head and neck are derived from...

branchial (gill) arches

innervation is pharyngeal motor (P)

- give rise to muscle of facial expression, chewing, jaw

9

what are ganglia?

similar structure and function

outside CNS (in PNS)

10

2 neuron chain of general visceral efferents (autonomics)

- preganglionic neuron projects to ganglion; synapses (acetycholine) onto post ganglionic neuron

- post ganglionic neuron projects to target

11

general visceral efferents arise entirely from...

spinal cord

12

general visceral efferents sympathetics emerge from

intermediate horn spinal cord (T2-L3) and travel through sympathetic chain

13

general visceral efferents sympathetics synapse..

either within chain or abdominal or pelvic ganglia

14

preganglionic and postganglionic length of general visceral efferents sympathetics

preganglionic= short

post-ganglionic= long

15

post ganglionic neurotransmitter

general visceral efferents sympathetics

noradrenaline

16

is there a sympathetic component of cranial nerves?

NO sympathetic component

17

general visceral efferents parasympathetics emerge from

- principle supply from cranial nerves
- part of some cranial nerves (and sacral spinal nerves)

18

general visceral efferents parasympathetics length of pre/post ganglionic

pre-ganglionic= long

post-ganglionic= short

19

post ganglionic neurotransmitter

general visceral efferents parasympathetics

acetycholine

20

preganglionic portiosn of general visceral efferents parasympathetics found where?

at specific nucleus in brainstem, or found in grey matter of lowest levels of the spinal cord (S2-S4)

21

what is CN I

Olfactory nerve

22

is CN I sensory/motor/both

sensory only

23

what type of sensory is CNI

special sensory (Sp)

- olfaction and smell

24

multiple elements of CNI passes from...

olfactory epithelium through skull to reach olfactory bulb where it synapses

25

what is CNII

Optic nerve

26

is CN II sensory/motor/both

sensory only

27

what type of sensory is CNII

Special sensory (Sp)

- vision from retina

28

CNII fibers cross where? terminate?

some fibers cross at optic chiasma

- terminate in thalamus (LGN), midbrain (superior colliculus), and hypothalamus

29

what is CNIII

oculomotor

30

is CNIII sensory/motor/both

motor only