The Cranial nerve

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The Cranial nerve

  1. 1. By Pankaj Kukreti
  2. 2. What Are Cranial Nerve ? - Cranial Are The Type Of Nerve , Which Comes Out From The Brain Rather Than Spinal Cord - These Nerve Only Seen From Bottom Side Of Brain - In Human There Are About 12 Pair Of Cranial Nerve Found
  3. 3. Numbering Of Cranial Nerve ? - Traditionally, These Nerve Are Abbreviated by their corresponding Roman numerals. - They are numbered according to where their nuclei lie in the brain stem
  4. 4. Types :- In Agantha (jaw less) Animal :There are about 8-10 pair cranial nerve - In Gnathostomata Animal :There are about 10-12 pair cranial nerve - In Anamniotes :10 Pair of Cranial Nerve Found - In amniotes. :Cranial nerves XI and XII . - Note :CN XI controls some muscles of the shoulder girdle CN XII) is involved in control of the tongue
  5. 5. Names & Function : I -Olfactory - olfaction (smell)  II -Optic - vision (Contain 38% of all the axons connecting to the brain.)  III -Oculomotor - eyelid and eyeball muscles  IV -Trochlear - eyeball muscles  V -Trigeminal - facial and mouth sensation , chewing  VI -Abducens - eyeball movement
  6. 6. Names & Function-2 : VII-Facial - taste, facial muscles and salivary glands  VIII -Auditory - hearing and balance  IX -Glossopharyngeal - taste, swallowing  X -Vagus - main nerve of the parasympathetic nervous system (PNS)  XI -Accessory - moving head and shoulder  XII -Hypoglossal - tongue muscles
  7. 7. Disorder Of Cranial Nerve :- TRIGEMINAL NEURALGIA (Tic Douloureux) - GLOSSOPHARYNGEAL NEURALGIA - Bell's Palsy - Menieres Disease - Vertigo And Dizziness

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