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Head And Neck > Trigeminal Nerve > Flashcards

Trigeminal Nerve Flashcards

1
Q

The trigeminal nerve is the sensory nerve for the ____ and the motor nerve for the:

A

Face

Muscles of mastication and several small muscles

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2
Q

The trigeminal ganglion is the large senseory ganglion of ____

It forms what nerves?

A

CN V

Opthalmic nerve (CN V1)

Maxillary nerve (CN V2)

SENSORY component of the mandibular nerve (CN V3)

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3
Q

3 divisions of the trigeminal ganglion, type of nerve. They exit the middle cranial fossa via…

A

Opthalmic - sensory - superior orbital fissure

Maxillary - sensory - foramen rotundum

Mandibular- sensory and motor - ornament ovale

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4
Q

The motor fibers of the trigeminal nerve runs with:

A

Sensory fibers of the mandibular division

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5
Q

The motor root of the trigeminal nerve leaves the ___ ___ fossa through __ ___ in association with the:

A

Middle cranial

Foramen ovale

Third division of the sensory root

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6
Q

The motor root of the trigeminal nerve unites with the sensory root or form:

Which is:

A

Single nerve trunk

Mandibular branch of the trigeminal nerve

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7
Q

The motor fibers of the tri nerve supply what muscles?

A

Mastication muscles (masseter, temporalis, medial and lateral pterygoid)

Mylohyoid

Ant belly of digastric

Tensor tympani

Tensor palatini

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8
Q

Sensory fibers meeting in the ____ ____. These are located in the ____ part of the ____ bone.

A

Trigeminal ganglia (gasserian ganglia)

Petrous part

Temporal bone

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9
Q

The sensory root divides into what 3 branches?

A

Ophthalmic

Maxillary

Mandibular

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10
Q

The ophthalmic nerve (CN V1) has (#) branches that’s pass through the ____ ___ ___ and supply structures in the ___.

What are the branches?

A

3

Superior orbital fissure

Orbit

Lacrimal nerve

Frontal nerve

Nasociliary nerve

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11
Q

The lacrimal nerve passes to the _____ gland, giving ____ branches to the:

Its distal part also carries _____ _____ conveyed to it from the _____ _____.

A

Lacrimal

Sensory

Conjunctiva and skin

Secretomotor fibers

Zygomatic nerve (CN V2)

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12
Q

The frontal nerve divides into the _______ and _____ nerves, providing ____ innervation to the:

A

Supra-orbital and supratrochlear nerves

Sensory

Superior eyelid, scalp and forehead

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13
Q

The nasociliary nerve provides ____ innervation to the:

A

Sensory

Eyeball

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14
Q

The nasociliary nerve gives rise to what branches?

A

Infratrochlear nerve

Ethmoidal nerves

Long ciliary nerves

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15
Q

What is a terminal branch of the nasociliary nerve?

A

Infratrochlear (with ethmoidal nerve)

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16
Q

What does the infratrochlear nerve supply?

A

Eyelids, conjunctiva, skin of the nose and lacrimal sac

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17
Q

The ethmoidal nerves divide into ____ and ____ branches that supply:

A

Anterior and posterior

Mucus membrane of the sphenoidal and ethmoidal sinuses

And nasal cavities and dura mater of the anterior cranial fossa

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18
Q

The long ciliary nerves supply the ______. They convey ____ _____ fibers to the ____ ____ and _____ fibers from the ___ and ___

A

Eye ball

Postsynaptic sympathetic

Dilator pupillae

Afferent

Iris and cornea

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19
Q

The ciliary ganglion consists of _____ _____ nerve cell bodies. It is located between the ___ ___ and the ____ ____

A

Postsynaptic parasympathetic

Optic nerve (CN I)

Lateral rectus

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20
Q

The ciliary ganglion receives nerve fibers from what 3 sources?

A

Sensory fibers from CN Vi Ivan the nasociliary nerve

Presynaptic parasympathetic fibers from CN II

Postsynaptic sympathetic fibers from the internal carotid plexus

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21
Q

Short ciliary nerves arise from the _____ ____ and consist of:

A

Ciliary ganglion

Postsynaptic parasympathetic fibers originating in the ciliary ganglion

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22
Q

The short ciliary nerves travel through the:

And leave the cranial cavity through:

A

Lateral wall of cavernous sinus

Superior orbital fissure into the orbit

23
Q

The maxillary nerve is wholly:

A

CN (V2)

Sensory

24
Q

Branches of the maxillary nerve within the cranium

A

Middle meningeal Nerve

25
Q

Branches of the maxillary nerve in the pterygopalatine fossa

A

Zygomatic nerve

  • zygomaticofacial
  • zygomaticotemporal

Post. Sup. Alveolar nerve

Pterygopalatine ganglionic branches

26
Q

Maxillary nerve branches from ganglia:

A

Orbital nerve

Post. Superior nasal nerves

Nasapalatine nerve

Greater palatine nerve

Lesser palatine nerve- pharyngeal branch

27
Q

The infra-orbital nerve is a continuation of:

A

Maxillary nerve

28
Q

The infra-orbital nerve enters the orbit via ___ _____ ____. It transverses:

Here it gives rise to:

A

Inferior orbital fissure

Infraorbital groove and canal

Ant sup alveolar nerve

Middle sup alveolar nerve

29
Q

Where does the post superior alveolar nerve arise?

It is a branch of:

A

infratemporal fossa

infra-orbital nerve

30
Q

After emerging through the infraorbital foramen, the infra-orbital nerve divides into what branches?

A

inferior palpebral

internal and external nasal

superior labial

31
Q

infra-orbital nerves supplies:

A

mucosa of maxillary sinus

maxillary teeth

skin and conjunctiva of inf eyelid

skin of cheek
lateral nose

anteroinferior nasal septum

skin and oral mucosa of upper lip

32
Q

Smaller terminal branch of the zygomatic nerve

what does it supply?

A

zygomaticofacial

skin on prominence of cheek

33
Q

larger terminal branch of zygomatic nerve

it sends a communicating branch to _____ nerve in orbit and supplies:

A

zygomaticotemporal

lacrimal

skin overlying anterior part of temporal fossa

34
Q

Mandibular is largely:

A

sensory, but also receives motor fibers

35
Q

the mandibular nerve descends through the ___ ____ to enter the ____ fossa and dividing into

A

foramen ovale

infratemporal fossa

anterior and posterior trunks

36
Q

motor fibers of the mandibular nerve supply:

A

muscles of mastication

masseter, temporal, medial, and lateral pterygoids

37
Q

branches of the posterior trunk of the mandibular nerve

A

auriculotemporal

inf alveolar

lingual

38
Q

the auriculotemporal nerve rises via (#) roots that encircle the ____ ___ artery and then unite into a single trunk

A

2

middle meningeal

39
Q

the auriculotemporal nerve passes ____, medial to the:

it supplies:

A

posteriorly

neck of the mandible

sensory fibers to the auricle and temporal region

40
Q

The auriculotemporal nerve also sends articular fibers to:

And parasympathetic secretomotor fibers to the:

A

TMJ

parotid gland

41
Q

The inf alveolar nerve enters the _____ foramen and passes through the ____ ____ forming the:

A

mandibular

mandibular canal

inferior dental plexus

42
Q

the inf alveolar nerve supplies:

A

all mandibular teeth of that side

43
Q

the inf alveolar nerve gives rise to:

A

nerve to mylohyoid

mental nerve/lingual nerve

44
Q

the nerve to mylohyoid is a (LARGE/SMALL) branch that arises just before entering the ______ foramen.

It supplies:

A

small

mandibular

mylohyoid
and ant belly of digastric muscles

45
Q

the mental nerve/lingual nerve passes through the _____ foramen and supplies:

A

mental

skin and mucous membrane of the lower lip

skin of the chin

46
Q

the lingual nerve lies anterior to the ___ ___ nerve. It is sensory to:

A

inf alveolar nerve

the anterior 2/3 of the tongue
floor of mouth
lingual gingivae

47
Q

the lingual nerve joins the ____ ___ nerve. It carries ____ fibers from the the:

Also provides:

A

chorda tympani (branch of the facial nerve)

taste

ant 2/3 of the tongue

presynaptic parasympathetic secretomotor fibers for the submandibular and sublingual salivary glands

48
Q

the anterior division of the mandibular nerve is the (LARGER/SMALLER) branch

A

smaller

49
Q

branches of the ant division of the mandibular nerve

A

buccal nerve

muscular branches to muscles of mastication (masseter, temporalis, medial and lateral pterygoid)

50
Q

the buccal nerve arises in the _____ fossa, uniting with:

It supplies

A

infratemporal

buccal branches of facial nerve

skin and oral mucosa of cheek

51
Q

the otic ganglion (___) is in the _____ fossa just inf to the ____ ___

A

parasympatetic

infratemporal

foramen ovale

52
Q

presynaptic parasympathetic fibers of the otic ganglion are derived mainly from the:

A

glossopharyngeal nerve (CN IX)

53
Q

postsynaptic parasympathetic fibers of the otic ganglion pass from the ___ to the ___ ___ through the _____ nerve

A

ganglion

parotid gland

auriculotemporal

54
Q

review clinical relevance. Not sure he will quiz over this

A

trigeminal neuralgia

Head And Neck (16 decks)

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