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BS IV, Module II > 2. CN V > Flashcards

2. CN V Flashcards

1
Q

V1

  • ____
  • ____
  • ____
  • Suspensory root of the ____
A

nasociliary nerve
frontal nerve
lacrimal nerve
ciliary ganglion

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2
Q

V1 has three main branches in the orbit (NFL)

  • ____
  • ____
  • ____

___ convey
sensation from the cornea

Afferent limb of the corneal reflex (VI-VII)

A

nasociliary
frontal
lacrimal

long ciliary nerves

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3
Q
  • FRONTAL
  • ___
    • Forehead and scalp skin
    • Frontal sinus
  • ___
    • Conjunctiva
    • Upper lid
    • Forehead
    • Lateral nose
  • LACRIMAL
    • Skin near ___
    • Conjunctiva
  • NASOCILIARY
    Enters the orbit through the ___
  • ___
    Including lacrimal sac and related structures
A

supraorbital
supratrochlear
lacrimal gland
annular tendon

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4
Q

The
___
branches
of the nasociliary nerve will be considered when we examine the innervation of the nasal cavity

A

ethmoidal

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5
Q

V2 (ZIP)

  • ___

V2 branches extensively within the ___

A

Maxillary nerves

pterygopalatine fossa

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6
Q

V2

  • Zygomatic
  • ___
  • Zygomaticoorbital
  • ___

Infraorbital

  • ___
  • Nasal
  • ___
A

zygomaticofacial
zygomaticotemporal

superior labial
inferior palpebral

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7
Q

SUPERIOR ALVEOLAR NERVES

These nerves course along the walls of the ___ sinus to form the
___ plexus…
… the plexus gives rise to ___ branches to the apices of the maxillary tooth roots and ___ branches as well

A

maxillary
superior dental
dental
gingival

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8
Q

Infection of the hard-to-drain MAXILLARY SINUSES may produce compression of the
__
NERVES…… And produce __ dental pain

A

superior alveolar

referred

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9
Q

The Pterygopalatine Ganglion is suspended from ____ within the pterygopalatine fossa

POSTGANGLIONIC PARASYMPATHETICS arising from the ganglion are distributed by terminal branches of ____

The ganglion receives preganglionic parasympathetic inputs from the ____ from CN VII

A

V2
V2
greater petrosal nerve

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10
Q

NASAL CAVITY

NOTE THE CONTRIBUTION OF ____ BRANCHES

A

V1

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11
Q

The
____
nerve terminates by coursing through the incisive canal
of the hard palate

A

nasopalatine

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12
Q

PALATINE NERVES

  • ____
  • ____
A

greater palatine

lesser palatine

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13
Q

Understanding the peripheral distribution of branches of V2 and V3 is crucial to appreciating the basis of introducing dental anesthesia via both ____ and ____ injections

A

infiltration

block

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14
Q

Most maxillary teeth may be anaesthetized by ____ as fluid is injected directly into an area of concern and diffuses through both soft tissue AND thin ____ to block local terminal nerve fibers

A

local infiltration

alveolar bone

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15
Q

The needle pierces the mucobuccal fold at ____ and is advanced to the injection site above the roots of ____

Inadvertent penetration of either the ____ vessels or, more likely, the ____ plexus may result in a hematoma

Posterior superior alveolar nerves

A

M2
M3
posterior superior alveolar
pterygoid venous

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16
Q

The anesthetic may be infiltrated above the root tips of the ____
Both ____ and the ____ root of ____ will be anesthetized

Middle superior alveolar nerves

A

first maxillary premolar
premolars
mesial
M1

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17
Q

The anesthetic may be infiltrated in the canine fossa above the root tip of the ____
The ____ and the ____ will be anesthetized (but beware the central incisor!)

Anterior superior alveolar nerve

A

maxillary canine
incisors
canine

18
Q

The anesthetic is injected into the ____
on either side of the
____

Necessary for anesthetizing mucosa of the ____

Nasopalatine nerve

A

incisive foramen
incisive papilla
primary palate

19
Q

The nerve may be blocked along an imaginary line
halfway between the ____ and the ____

Necessary for anesthetizing mucosa of the ____

Greater palatine nerve

A

mid palate raphe
free gingival edge
secondary palate

20
Q

MAXILLARY NERVE BLOCK
(RARE)

A long needle is passed up through the ____ and pterygopalatine canal into the ____!!!

The infraorbital block is also quite challenging - WHY?

Can potentially pierce the ____, and get ophthalmalgia (the recti will be temporarily paralyzed)

A

greater palatine foramen
pterygopalatine fossa
orbit

21
Q

V3

Recall that V3 is the only division containing ____ fibers

A

SVE (branchial major)

22
Q

SVE fibers in V3 innervate:

\_\_\_\_ Muscles of Mastication
\_\_\_\_
Tensor Veli Palatini
\_\_\_\_
Anterior Digastric
A

4
tensor tympani
mylohyoid

23
Q

MUSCULAR BRANCHES
(Lateral view)

  • Deep temporal nerves
  • ____
  • Lateral pterygoid nerve
  • nerve to ____
    • ____
    • ____
A

masseteric nerve
mylohyoid
mylohyoid
anterior digastric

24
Q

MUSCULAR BRANCHES
(Medial View)

  • Nerve to ____
  • Nerve to tensor veli palatine
  • ____
  • Otic ganglion
A

tensor tympani

medial pterygoid nerve

25
Q

CN V Lower motor neuron lesions (SVE)
– Paralysis of ____
– ____ of masticatory muscles
– ____ deviation of jaw upon protrusion

Also contralateral deviation of ____ and ____

A

masticatory muscles
atrophy
ipsilateral

soft palate
uvula

26
Q

V3 has four main sensory branches

  • ____
  • ____
  • ____
  • ____
A

long Buccal
Auriculotemporal
Inferior alveolar
Lingual

27
Q

The
AURICULOTEMPORAL
is formed by two roots that surround the ____ below the ____

A

middle meningeal artery

foramen spinosum

28
Q

The
AURICULOTEMPORAL
is vulnerable to fractures of the neck of the ____

The primary nerve responsible for innervation of the ____

A

condyle

TMJ

29
Q

LONG BUCCAL

Mediates sensation from both the skin superficial to, and the mucosa deep to, the ____ muscle of the cheek

A

buccinator

30
Q

LINGUAL NERVE

Provides general sensation to:
MUCOSA
of the \_\_\_\_
FLOOR of the \_\_\_\_
\_\_\_\_ GINGIVAE
A

presulcal tongue
mouth
mandibular

31
Q

LINGUAL NERVE

  • ____ (CN VII)

Chorda tympani from CN VII joins the lingual nerve in the ____

A

chorda tympani

infratemporal fossa

32
Q

Lingual nerve + chorda tympani

Both are destined to mediate sensation from the mucosa of the ____ of the tongue

A

anterior 2/3

33
Q

CHORDA TYMPANI also contains ____ fibers which synapse in the ____

A

GVE

submandibular ganglion

34
Q

Postganglionic parasympathetics arising from the ____ travel with terminal branches of the lingual nerve to innervate the ____ and ____ salivary glands

  • ____
  • Inferior alveolar nerve
  • ____
A

submandibular ganglion
submandibular
sublingual

dental branches (plexiform)
mental
35
Q

Given the thickness of mandibular bone, ____ in which the anesthetic solution is deposited adjacent to a large peripheral nerve proximal to the operative site, are usually used to numb the ____ dentition and adjacent soft tissue

A

nerve block injections

mandibular

36
Q

MANDIBULAR BLOCK Should anesthetize the
____ and ____ nerves with a single needle penetration

Anesthetic is deposited just above
the mandibular foramen where the ____ enters the mandible…
and on the ____ as the needle is retracted

A

inferior alveolar
lingual
inferior alveolar
lingual

37
Q

Posterior penetration of the needle may lead to injection of anesthetic into the ____
producing transient, ____ facial paralysis

A

parotid gland capsule

unilateral

38
Q

Long buccal nerve

Often performed
to complement the
____ block, the
____ BRANCHES of the LONG BUCCAL NERVE supply the buccal gingiva adjacent to the ____

A

mandibular
gingival
mandibular molars

39
Q

Mental nerve

For blocking a portion of the inferior alveolar and mental nerves to anesthetize the ____ and ____

THE NEEDLE PENETRATES
THE ____ FOLD ADJACENT TO THE PREMOLARS AND IS DIRECTED TOWARD
THE ____

A

premolars
incisors
mucobuccal
mental foramen

40
Q

Trigeminal Neuralgia (Tic doloureux)

  • Symptoms: ____, paroxysmal pain; ____; unilateral; disabling
  • The pain is frequently triggered by moving the ____, smiling or yawning, or by cutaneous or mucosal stimulation
  • Almost always ____; often seniors
  • Usually within ____ or ____ divisions
  • Etiology: ____ or compression of the sensory root ____ (by the superior cerebellar artery); postherpetic neuralgia, tongue ____; ideopathic; but NOT OF ____ ORIGIN (usually)!
  • Treatment: ____, anticonvulsants, surgical decompression, ____, ____ ablation
A 
lancinating
intermittent
mandible
adults
second
third
demyelination
endocranially
piercing
dental
analgesics
rhizotomy
gamma knife
41
Q

Additional CN V lesions

  • ____ infection
  • Ischemic lesions (branch of cavernous ICA)
  • ____ (petrous apicitis)
  • Dental and facial trauma
  • Neoplasm
    • ____ (benign)
    • Cerebellopontine angle tumors
    • ____ spread from face, cavities, or sinuses
  • ____ disease - mycobacterium ____
A 
herpes zoster
gradenigo syndrome
trigeminal schwannomas
perineurial
hansen's
leprae

BS IV, Module II (9 decks)

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