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Cranial Nerves
 
Cranial Nerves
 

CN I: Olfactory Nerve

 
 
 
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Overview

  • Role

  • Special sensory (smell).

Olfactory Nerve Palsy

  • Abnormality

  • Anosmia.
  • Causes of Olfactory Nerve Palsy

  • Trauma - coup / contrecoup
  • Frontal lobe - trauma, ischaemia, tumour
  • Meningitis
  • Neurosyphillis

Pathway

Processing / Association Centres
Uncus, hippocampus, frontal lobe
 
 
Olfactory Nucleus
Olfactory Bulb
 
Foramen
Cribriform plate
 
Olfactory Receptor Nuclei
Osmoreceptors within nasal mucosa
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