Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

10003 - paramedic science > cranial nerves > Flashcards

cranial nerves Flashcards

You may prefer our related Brainscape-certified flashcards:
NREMT® Paramedic flashcards NREMT® EMT flashcards Biology 101 flashcards
1
Q

names of the cranial nerves

A

Only - Olfactory
One - Optic
Of - Oculomotor
The - Trochlear
Two - Trigeminal
Athletes - Abducens
Felt - Facial
Very - Vestibulocochlear
Good - Glossopharyngeal
Victorious - Vagus
And - Accessory
Healthy - Hypoglossal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

which nerves are for smell and sight

A

olfactory and optic (I&II)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

which nerves are for moving eyeballs

A

oculomotor, trochlear, abducens (III&IV&VI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

which nerves are for touch and movement of anterior 1/2 of head

A

trigeminal and facial (V&VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

which nerves are for hearing and balance

A

vestibulochochlear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

which nerves are for touch and movement of posterior 1/2 of head

A

glossopharyngeal, vagus (IX&X)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

which nerves are for shrugging muscles

A

accessory (XI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

which nerves are for the tongue

A

hypoglossal (XII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

which are the parasympathetic fibres

A

III,VII,IX,X

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are the 4 fibre types

A
  • general sensory
  • special sensory
  • somatic motor
  • parasympathetic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

general sensory fibre

A

sense of touch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

special sensory fibre

A

smell, sight, taste, hearing and balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

somatic motor fibre

A

under conscious control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

parasympathetic fibre

A

both afferent and efferent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

olfactory nerve - CNI

A
  • function: carries sense of smell from the olfactory mucosa to the brain
  • one fibre type is smell (special sense)
  • it exists the cranial cavity via cribriform plate
  • originates as an extension of the telencephalon
  • sensors in the superior part of the nasal cavity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

optic nerve - CNII

A
  • function: deliver sense of sight to the brain
  • 1 fibre type: special sense (sight)
  • emerges from the brain as the optic tract - from the diencephalon
  • exits cranial cavity via optic canal
  • sensors in retina
17
Q

Oculomotor nerve - CNIII

A
  • function: moves muscles in the eyeball sockets that move the eye around and lift up the eyelid (extrinsic eye)
  • secondary function: parasympathetic with synapse on a ganglion behind eye to constrict the pupil (intrinsic eye)
  • is a motor cranial nerve
  • emerges from the anterior surface of the midbrain
18
Q

trochlear nerve - CNIV

A
  • 1 fibre type: somatic motor function
  • function: innervation to superior oblique, an extrinsic muscle of the eye
  • emerges from the posterior surface of brainstem
  • exits cranial cavity via superior orbital fissure
  • target in orbit
19
Q

abducens nerve - CNVI

A
  • function: innovates the muscle that abducts the pupil
  • 1 fibre type: somatic motor
  • goes to 1 of the 6 muscles in the eye - the lateral rectus muscle
  • originates between pons and medulla
  • exits cranial cavity via superior orbital fissure
20
Q

trigeminal nerve - CNV

A
  • has 3 divisions: ophthalmic division, maxillary division, mandibular division
  • 2 fibre types: general somatic sensory and branchial motor
  • function: sensation across the face comes and anterior scalp, moto to muscles of mastication
  • emerges from the middle of the pons
  • synapses are in the trigeminal nuclei
21
Q

facial nerve - CNVII

A
  • has all four fibre types
  • emerges from the pons-medullary junction
  • leaves cranial cavity at the internal acoustic meatus
  • function: innervation of facial muscles, taste of anterior 2/3rds of tongue
22
Q

vestibulocochlear nerve - CNVIII

A
  • function is to give hearing and balance
  • emerges from the pons-medullary junction
  • runs parallel to the facial nerve
  • exits through the internal acoustic meatus
  • sensors in inner ear in temporal bone
23
Q

glossopharyngeal nerve - CNIX

A
  • general function is being the general sensory nerve for the posterior part of the head
  • originates from pons-medullary junction
  • has all 4 fibre types
  • special sense component is taste to the posterior 1/3rd of the tongue
  • exits at jugular foramen
24
Q

vagus nerve - CNX

A
  • originates from medulla
  • exits at jugular foramen
  • supplies parasympathetic innovation to the viscera of the thorax and abdomen, motor of pharynx and larynx, taste to epiglottis
  • has all 4 fibre types
25
Q

Accessory nerve - CNXI

A
  • originates from lateral aspect of spinal cord and brainstem
  • exits through the jugular foramen
  • 1 fibre type: general somatic motor
  • function: innervation of the the sternocleidomastoid-mastoid and trapezius muscle for elevation of the scapula and clavicle
  • targets in neck and back
26
Q

hypoglossal nerve - CNXII

A
  • function: innervation to the muscles of the tongue
  • originates from medulla
  • travels through the hypoglossal canals that are immediately anterior to the foramen magnum
  • runs underneath the tongue for supply
  • exits cranial cavity via hypoglossal canal
27
Q

sensory of motor functions (follows order of mnemonic for nerves)

A

Some - sensory
Say - sensory
Marry - motor
Money - motor
But - both
My - motor
Brother - motor
Says- sensory
Big - both
Brains - both
Matter - motor
More - motor

28
Q

opthalmic division - CN V1

A

the somato-sensation for the tip of the nose, above the corner of the eye to the top of the head

29
Q

maxillary division - CN V2

A
  • sensation for the eye to the corner of the mouth
  • is overlying the maxilla
30
Q

mandibular division - CN v3

A
  • sensation for the edge of the chin up to the corner of the mouth
  • sits over the mandible
  • the only part of the trigeminal nerve that carries motor route
  • cervical nerves are from below the chin
31
Q

what is the motor route of the trigeminal nerve

A
  • the muscle of mastication
  • temporalis, massitor, medial and lateral terigoids, tensor tympani, tensor veli palatini
32
Q

where do the divisions of the trigeminal nerve leave

A
  • V1: superior orbital fissure
  • V2: foramen rotundum (inferior to the orbit and above oral cavity)
  • V3: foramen ovale (through base of skull close to the jaw joint)
33
Q

what are the branches of the facial nerve

A
  • parotid plexus
  • posterior auricular nerve
  • chroda tympani
  • greater petrosal nerve
34
Q

where is the internal acoustic meatus located

A

in the petrous temporal bone

35
Q

what is the somatic motor function of the vagus nerve

A

all of the muscles of the voice box and all the muscles of the pharynx

36
Q

what is the special sensation of the vagus nerve

A

taste in the back of the throat on the epiglottis

37
Q

where is the general sense of the vagus nerve

A

part of the area posterior to the external ear

38
Q

what is the somatic pathway into the head

A
  1. derive from the thoracic and lumbar regions of the spine
  2. travel up and synapse in the sympathetic chain (either side of vertebral column)
  3. cross onto internal carotid artery and become plexiform
  4. they generally distribute with the arteries that targets are in the head

10003 - paramedic science (26 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions