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Neurology > Anatomy 4: Cranial Nerves > Flashcards

Anatomy 4: Cranial Nerves Flashcards

1
Q

which cranial nerves are special sensory

A 
one
two
seven
eight
nine
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2
Q

Which cranial nerves are parasypapthetic

A

three,
seven,
nine
ten

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3
Q

Which cranial nerves are motor

A 
three
four
V3
six
seven
nine
ten
eleven
twelve
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4
Q

which cranial nerves are sensory

A

V1, 2, 3

nine

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5
Q

name the three branches of the trigeminal nerve

A

ophthalmic V1
maxillary V2
Mandibular V3

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6
Q

Where does the trigeminal nerve connect to the cns

A

PONS (only CN to do so)

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7
Q

What is the intracranial course of the trigeminal nerve

A

inferior edge of the tentorium cerebelli

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8
Q

Name the exit points of the trigeminal nerve from the base of the skull

A

V1- SOB
V2- foramen rotundum
V3- formamen ovale

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9
Q

what areas does V1 give sensory innervation to

A

Upper eyelid
cornea
conjunctiva
nose bridge

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10
Q

where does V2 supply (sensory)

A

lower eyelide
maxilla
ala of nose
upper lip

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11
Q

where does CN V3 supply (sensory

A

mandible and TMJ

except angle of mandible = C2, C3 spinal nerves

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12
Q

where does the greater auricular nerve supply

A

C2,3 branch of cervical plexus

supplies angle of mandible and external ear (some)

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13
Q

cn v1 deep sensory innervation

A

bones of orbit
upper anterior nasal cavity
paranasal sinuses except antrum
anterior and posterior cranial fossa

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14
Q

cn V2 deep sensory innervation

A

the lower posterior nasal cavity

  • the maxilla & maxillary sinus (antrum)
  • the floor of the nasal cavity/palate
  • the maxillary teeth & associated soft tissues (gingivae & mucosae)
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15
Q

cn V3 deep sensory territory

A

the middle cranial fossa

  • the mandible
  • the anterior 2/3rds of the tongue
  • the floor of the mouth
  • the buccal mucosa
  • the mandibular teeth & associated soft tissues
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16
Q

what does the trigeminal nerve give motor innervation

A 
masseter
temporalis
medial and lateral pterygoid
tensor veli palatine
tensor tympani
17
Q

where does CNVII connect to the cns

A

anterolateral at pontomedullary junction

18
Q

what is the intracranial course of the facial nerve

A

internal acoustic meatus in posterior cranial fossa

19
Q

where does cnVII exit the skull

A

internal acoustic meatus, stylomastoid foramen

20
Q

where is the facial nerces extracranial course

A

somatic motor axons pass onto parotid gland

supply muscles of facial expression

21
Q

where does the chorda tympani supply

A

anterior two thirds of the tongue tast buds

parasympathetic so submandibular and sublingual salivary glands

22
Q

where does the glossopharyngeal nerve connect to the CNS

A

lateral aspect of superior medulla oblongata

23
Q

where does the glossopharyngeal nerve exit the skull

A

jugular foramen

24
Q

what is the function of the glossopharyngeal nerve

A

general sensory to posterior third of tongue, musoca of nasopharynx, oropharynx and some of laryngopharynx, palatine tonsil, Eustachian tube, middle ear
special sensory- vallate papillae on posterior third of tongue
visceral afferent to carotid sinus
somatic motor to stylopahryngeus
parasympathetic to parotid gland

25
Q

where does the vagus nerve connect to the CNS

A

lateral aspect of medulla

26
Q

where does vagus exit the skul

A

juguar foramen

27
Q

where does the vagus nerve travel in the neck

A

carotid sheeth

28
Q

what is the course of the vagus nerve through the chest and abdomen

A

L- lateral aspect of trachea
R- lateral aspect of aortic arch
pass onto oesophagus into stomach thorugh diaphragm

29
Q

where does the spinal accessory nerve connect with the cns

A

via cervical spinal nerve anterior rootlets to the spinal cord

30
Q

what is the intracranial course of CNXI

A

ascends through foramen magnum then travels towards jugular foramen in posterior cranial fossa

31
Q

where does CNXI supply

A

SCM
trapezius
crosses posterior triangle of the neck

32
Q

where does the hypoglossal nerves connect to the cns

A

via rootlets that attach to lateral to the pyramids of the medulla

33
Q

where does CN XII exit the skull

A

hypoglossal canal

34
Q

where is the hypoglossal extra cranial cours

A

descend in neck lateral to carotid sheeth

at hyoid bone it passes anteriorly towards the lateral aspect of the tongue

35
Q

what does hypoglassal nerve supply

A

motor to most of the muscles of the tongue

Neurology (36 decks)

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