Neuroanatomy: Cranial Nerves V And Vii

Front 1

CN V is also called the ______

Back 1

trigeminal nerve

Front 2

The three main divisions of the trigeminal nerve are:

Back 2

Opthalmic (V1), maxillary (Vii) and mandibular (Viii)

Front 3

Three divisions of trigeminal arise from

Back 3

the trigeminal ganglion

Front 4

The trigeminal provides senesory sensation to

Back 4

most of the dura matter and cerebral arteries

Front 5

The opthalmic division is purely _____

Back 5

Sensory

Front 6

The opthalmic division provides sensory information to:

Back 6

Eyeball (cornea blink)

Front 7

The maxillary division is purely _______

Back 7

sensory

Front 8

The maxillary division (Vii) provides sensory input to:

Back 8

upper jaw and teeth, hard and soft palate, maxillary sinus, skin of lower eyelids and cheek, upper lip

Front 9

upper jaw and teeth

Back 9

maxillary paranasal sinus

Front 10

The mandibular division contains both _____ and ____ components

Back 10

sensory and motor

Front 11

Three main branches of the mandibular division are:

Back 11

lingual, inferior alveolar, buccal

Front 12

Lingual branch of mandibular division function:

Back 12

Carries taste sensation from anterior 2/3 of tounger

Front 13

sensory to anterior 2/3 of tongue

Back 13

joined by chorda tympani branch of facial nerve which carries

Front 14

Inferior alveolar branch of the mandibular division function:

Back 14

Sensory to the jaw, teeth and gums

Front 15

Buccal branch of the mandibular division function:

Back 15

sensory to skin of cheek

Front 16

Trigeminal provides motor innervation to:

Back 16

Muscvles of mastication

Front 17

The trigeminal nucleus is the main _______

Back 17

sensory nucleus

Front 18

The trigenminal nucleus receives information containing:

Back 18

Discrminiative touch and some proprioception

Front 19

The trigeminal nuclei is equivalent to the:

Back 19

Dorsal column nucleus

Front 20

Axons carrying pain and temperature information descend in the ______ as far as the upper 2 or 3 spinal cord segments

Back 20

Spinal trigeminal tract

Front 21

Axons carrying pain and temp. info terminate in the subjacent ________

Back 21

spinal trigeminal

Front 22

The spinal nucleus and tract of CN V are equivalent to _________________ of the spinal cord

Back 22

the substantia gelatinosa and Lissauer�s tract of the spinal cord

Front 23

Spinal trigeminal nucleus also receives pain information from

Back 23

CNs VII, IX and X

Front 24

Efferent axons from trigeminal nucleus join the crossed ventral ______ and end in the thalamus

Back 24

trigeminothalmic tract

Front 25

Cells in the mesenphalic nucleus are involved with ______ and are equivalent to________

Back 25

proprioceptionl; DRG cells

Front 26

The mesenphalic nucleus is involved with :

Back 26

Processing information from muscle spindles involved with mastication (jaw jerk reflex)

Front 27

Muscles of mastication are involved with the _______ reflex

Back 27

jaw jerk

Front 28

The motor nucleus of trigeminal nerve supplies the muscles of _____

Back 28

mastication

Front 29

Clincal testing for trigeminal nerve (CN V) includes:

Back 29

Testing for skin sensation in forhead (Vi), cheek (Vii) and chin (Viii)

Front 30

Trigeminal is responsible for the ___ component of the corneal blink reflex

Back 30

sensory

Front 31

The most common affliction affecting CNV is______

Back 31

Trigeminal neulagia or tic doloreux

Front 32

Effect of tic doloreux

Back 32

Causes excruciating pain in one of the areas usually maxillary

Front 33

Cause of tic doloreaux

Back 33

Aberrant artery putting pressure on the sensory root as it leaves the pons

Front 34

CN VII is also known as the _____

Back 34

Facial nerve

Front 35

___ is the largest nerve in the face

Back 35

CN VII (facial nerve)

Front 36

CN VII enters the temporal bone via

Back 36

facial canal

Front 37

CN VII has its sensory ganglion in the ___

Back 37

temporal bone

Front 38

The facial nerve gives rise to three bluranches in the facial canal that includes:

Back 38

Greater petrosal, nerve to stapedius muscle, chorda tympani

Front 39

Function of greater petrosal

Back 39

Carries parasympathetic fibers for the lacrimal glands

Front 40

function of chorda tympani

Back 40

carries tatse and parsympathetic fibers

Front 41

The major portion of CN VII exits via _____

Back 41

stylomastoid formaen

Front 42

The facial nerve controls the muscles of ______

Back 42

fascial expression

Front 43

orbicularis oculi

Back 43

Muscle which closes the eye

Front 44

orbiculis oris

Back 44

sphincter of the oral cavity

Front 45

Function of stapedius

Front 46

contracts with loud sounds to dampen vibrations - protection of the auditory ossicles (stapedial reflex)

Back 46

reflex can be tested

Front 47

The parasympathetic components of the facial nerve include

Back 47

lacrimal glands, sabmandivular and sublingual salivary glands

Front 48

The special sensory component of the facial nerve deals with

Back 48

taste on the anterrior 2/3 of tounge

Front 49

Nuclei of CN VII include

Back 49

Motor nuceli, nucleus solitarius and parasympathetic nuceli

Front 50

The nuclues solitarius receives _____ information from CN IV (IX and X)

Back 50

taset

Front 51

The rostral or taste portion of nucleus solitarius is called

Back 51

gustatory nucleus

Front 52

CN VII is the ____ component of the ___ reflex

Back 52

motor; corneal blink

Front 53

Testing of CN VII includes

Back 53

movement of facial muslces

Front 54

Bell's palsy is a ________ injury of CN VII

Back 54

lower motor nueron

Front 55

Bell's palsy is usually caused by

Back 55

edema

Front 56

The _________ muscles are affected if Bell's palsy occurs at stylomastoid foramen

Back 56

facial

Front 57

Effect if Bell's pasly occurs proximal to the geniculate ganglion

Back 57

All functions of the nerve

Front 58

Each facial muscle and facila nerve supplies ipsi/contra lateral facial msucles

Back 58

ipsilateral

Front 59

A lower motor neuron deficit involves which muscles?

Back 59

muscles of the ipsilateral half of the face (hemiface)

Front 60

Typical site of injury for an upper motor neuron injury

Back 60

Stroke affecting facial area of motor cortex

Front 61

These fibers supply the facial nucleus

Back 61

Corticobulbar (corticopontine or corticonuclear)

Front 62

The facial nucleus from the lower face receives corticofibers from ________

Back 62

the contralateral cortex

Front 63

The facial nucleus for the upper face receives cortcofibers from ______

Back 63

both sides of the cortex (bilateral projections)

Front 64

An upper motor neuron lesion produces _______

Back 64

paralysis on only the lower quandrant of one side of the face