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Neuro clinics 26 - trigeminal nerve
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Neuro clinics 26 - trigeminal nerve

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trigeminal nerve for dummies

trigeminal nerve for dummies

Published in: Health & Medicine

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  • 1.  
  • 2. Neuro-clinics 26 Trigeminal nerve Dr Pratyush Chaudhuri Supported by Mankind Pharmaceuticals and Nirmal clinics
  • 3.
    • Mixed Nerve
    • Largest cranial nerve
  • 4.
    • Motor functions
    • Supplies the Massater, temporalis and the internal and external pterygoids.
    • Also supplies the mylohyoid and the ant belly of the digastric ms.
    • Tensor veli palatini and tensor vili tympani
  • 5.  
  • 6.  
  • 7.  
  • 8.
    • Sensory distribution
    • Pontine nucleus
    • Mesencephalic nucleus ( proprioceptive sensation from the muscles supplied by the Vth nerve)
    • Nucleus of descending root (extends upto the c3 – c4 root- tract of lissauers ’
  • 9.  
  • 10.
    • Sensory supply is also to the
    • Cornea , iris
    • Conjuctiva
    • Mucosa of the frontal sinus
    • Upper part of the nasal cavity.
  • 11.  
  • 12.  
  • 13.
    • Several ganglions are related to the Vth nerve
    • Gasserian ganglion
    • Spheno-palatine ganglion
    • Otic
    • Submaxillary ganglion
  • 14.  
  • 15. Key Principles of examinations
    • Jaw is deflected to the side of the involved nerve and the patient is unable to deviate it towards the unaffected side.
    • Open Jaw – pterygoides
    • Close jaw -masseters
  • 16.
    • Remember angle of the face is not supplied by the trigeminal – it is supplied by the C2- C3 root
  • 17.
    • Reflexes
    • Corneal reflexes ( direct and consensual)
    • Jaw jerk ( masseter reflex)
    • Head retraction reflex
    • Sneeze reflex
    • Reflex of Bechterew
  • 18.  
  • 19.
    • Pain of trigeminal origin
    • Trigeminal neuralgia
    • Herpes ophthalmicus
    • Sluders’ syndrome [ neuralgia of spheno-palatine ganglion]
  • 20.