Y2 Prep Unit 5: Cranial Nerves and Cervical Anatomy

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Last updated 6:27 PM on 7/6/26
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26 Terms

1
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olfactory CN I

type: sensory - SSA

  • nasal cavity / nasal mucosa

  • carries info about smell to brain

2
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olfactory CN I foramen

cribriform foramina in ethmoid bone

3
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optic CN II

type: sensory - SSA

  • brings visual information from retina to brain

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optic CN II foramen

optic canals - lesser wing of the sphenoid bone

5
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oculomotor CN III

type: motor - GSE, GVE

  • eye movement, lens accommodation

  • extraocular muscles

  • ciliary muscles

  • sphincter pupillae muscles

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oculomotor CN III foramen

the superior orbital fissure - between the greater and lesser wings of the sphenoid bone

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trochlear CN IV

type: motor - GSE

  • eye movement

  • superior oblique muscle

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trochlear CN IV foramen

the superior orbital fissure - between the greater and lesser wings of the sphenoid bone

9
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trigeminal CN V

type: both - SVE, GSA

  • mastication (motor)

  • scalp, face, and orbital (sensory)

  • 3 divisions

    • mandibular

    • maxillary

    • opthalamic

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trigeminal CN V (opthalamic) foramen

superior orbital fissure

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trigeminal CN V (maxillary) foramen

foramen rotundum

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trigeminal CN V (mandibular) foramen

foramen ovale

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abducens CN VI

type: motor - GSE

  • eye movement

  • lateral rectus muscle (abduction)

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abducens CN VI foramen

superior orbital fissure through the cavernous sinus

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facial CN VII

type: both - GVE, SVE, GVA, GSA, SVA

  • facial expression, taste, gland secretion

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facial CN VII foramen

stylomastoid foramen

17
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vestibulocochlear CN VIII

type: sensory - SSA

  • hearing + balance

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vestibulocochlear CN VIII foramen

opening in the petrous portion of the temporal bone - internal acoustic meatus

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glossopharyngeal CN IX

type: both - SVE, GVE, SVA, GVA, GSA

  • swallowing, salivation, taste sensation

  • parotid gland

  • tongue

  • carotid sinus

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glossopharyngeal CN IX foramen

jugular foramen

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vagus CN X

type: both - GVE, SVE, SVA, GVA, GSA

  • parasympathetic supply to visceral organs

  • thoracic and abdominal viscera

  • larynx

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vagus CN X foramen

jugular foramen

23
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accessory CN XI

type: motor - GSE, SVE

  • head and shoulder movement

  • trapezius

  • SCM

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accessory CN XI foramen

jugular foramen

25
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hypoglossal CN XII

type: motor - GSE

  • tongue movements

  • intrinsic and extrinsic tongue muscles except palatoglossus

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hypoglossal CN XII foramen

hypoglossal canal