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Cranial Nerve Functions & Foramina > CN functions and foramina > Flashcards

CN functions and foramina Flashcards

1
Q

Which foramen - olfactory nerve?

A

cribiform plate of ethmoid

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2
Q

Function - olfactory nerve?

A

sensory - smell

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3
Q

Nucleus - olfactory nerve?

A

anterior olfactory nucleus

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4
Q

Which foramen - optic nerve?

A

optic canal

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5
Q

Function - optic nerve?

A

sensory - vision

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6
Q

Nucleus - optic nerve?

A

lateral geniculate nucleus

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7
Q

Which foramen - oculomotor nerve?

A

superior orbital fissure

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8
Q

Function - oculomotor nerve?

A

motor innervation of: dorsal rectus, medial rectus, ventral rectus, ventral oblique

collectively perform most eye movements…

(raises upper lid, turns eyeball up/down/medially), constricts pupil, accommodates eye.

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9
Q

Nucleus - oculomotor nerve?

A

oculomotor nucleus, edinger-westphal nucleus

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10
Q

Foramen - trochlear nerve?

A

superior orbital fissure

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11
Q

Function - trochlear nerve?

A

motor - innervates superior oblique - turns eyeball downwards & laterally

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12
Q

Nucleus - trochlear nerve?

A

trochlear nucleus

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13
Q

Foramen - trigeminal nerve?

A

V1 - superior orbital fissure
V2 - foramen rotundum
V3 - foramen ovale

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14
Q

Function - trigeminal nerve - V1 branch?

A

V1 - Ophthalmic - sensory

  • from the scalp to the skin of the nose
  • mucous membrane of paranasal sinuses and nasal cavity
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15
Q

Function - trigeminal nerve - V2 branch?

A

V2 - Maxillary - sensory

  • maxillary skin
  • maxillary teeth
  • maxillary sinus
  • mucous membrane of nose
  • palate
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16
Q

Function - trigeminal nerve - V3 branch?

A

V3 - Mandibular - sensory and motor

Sensory:

  • skin
  • mandibular teeth
  • TMJ
  • mucous membrane of mouth
  • general sensation anterior 2/3 tongue via lingual branch

Motor:
-muscles of mastication (masseter, temporalis, medial pterygoid, lateral pterygoid)

  • accessory muscles of mastication (anterior belly of digastric, mylohyoid)
  • tensor tympani & tensor veli palatini
17
Q

Nucleus - trigeminal nerve?

A

principal sensory trigeminal nucleus, spinal trigeminal nucleus, mesencephalic trigeminal nucleus & trigeminal motor nucleus

18
Q

Which foramen - abducens nerve?

A

superior orbital fissure

19
Q

Function - abducens nerve?

A

motor - lateral rectus muscle - turns eyeball laterally

20
Q

Nucleus - abducens nerve?

A

abducens nucleus

21
Q

Which foramen - facial nerve?

A

internal acoustic meatus & stylomastoid foramen

22
Q

Function - facial nerve?

A

sensory and motor

Sensory:
-special sensation taste to anterior 2/3 tongue via chorda tympani

Motor:

  • muscles of facial expression
  • stapedius of ear

Secretomotor:

  • submandibular and sublingual glands
  • lacrimal glands
23
Q

Nucleus - facial nerve?

A

facial nucleus, solitary nucleus, superior salivary nucleus

24
Q

Foramen - vestibulocochlear nerve?

A

internal acoustic meatus

25
Q

Function - vestibulocochlear nerve?

A

sensory - sound, balance & movement

26
Q

Nucleus - vestibulocochlear nerve?

A

vestibular nuclei & cochlear nuclei

27
Q

Foramen - glossopharyngeal nerve?

A

jugular foramen

28
Q

Function - glossopharyngeal nerve?

A

sensory and motor

Sensory:
-special taste and general sensation posterior 1/3 tongue

Motor:
-stylopharyngeus muscle

Secretomotor:
-parotid glands

29
Q

Nucleus - glossopharyngeal nerve?

A

nucleus ambguus, inferior salivary nucleus & solitary nucleus

30
Q

Foramen - vagus nerve?

A

jugular foramen

31
Q

Function - vagus nerve?

A

sensory and motor

Branchiomotor:
-most laryngeal and pharyngeal muscles

Parasympathetic:
-thoracic and abdominal viscera

Sensory:
-special sense of taste from epiglottis

32
Q

Nucleus - vagus nerve?

A

nucleus ambiguus, dorsal motor vagal nucleus, solitary nucleus

33
Q

Foramen - accessory nerve?

A

jugular foramen

34
Q

Function - accessory nerve?

A

motor - controls muscles of the neck and overlaps with functions of vagus

35
Q

Nucleus - accessory nerve?

A

nucleus ambiguus & spinal accessory nucleus

36
Q

Foramen - hypoglossal nerve?

A

hypoglossal canal

37
Q

Function - hypoglossal nerve?

A

motor - muscle movement of the entire tongue and other glossal muscles

38
Q

Nucleus - hypoglossal nerve?

A

hypoglossal nucleus

Cranial Nerve Functions & Foramina (1 decks)

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