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NERVOUS SYSTEM

Central Nervous System Brain Spinal Cord. Peripheral Nervous System Cranial Nerves Spinal Nerves. NERVOUS SYSTEM. PERIPHERAL NERVOUS SYSTEM. Nerves from the central nervous system that connect it to other body parts. CRANIAL NERVES. Nerves of the head and neck. Cranial Nerves.

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NERVOUS SYSTEM

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  1. Central Nervous System Brain Spinal Cord Peripheral Nervous System Cranial Nerves Spinal Nerves NERVOUS SYSTEM

  2. PERIPHERAL NERVOUS SYSTEM Nerves from the central nervous system that connect it to other body parts

  3. CRANIAL NERVES Nerves of the head and neck

  4. Cranial Nerves • 12 Pairs • Arise from brain stem • Motor and sensory functions

  5. IDENTIFY NERVE • DESCRIBE FUNCTION • REVIEW HOW TO EVALUATE FUNCTION

  6. Equipment for Examination

  7. CN 1 Olfactory • Sensory reception and interpretion of smell

  8. EVALUATION • Test each nostril separately(one occluded) • patients eyes closed • use a couple of odors • begin with least irritating(soap,lotion,food)

  9. CN1

  10. CN 2 Optic Sensory - Vision

  11. EVALUATION • Test each eye separately using letter chart for visual acuity • Peripheral vision - each eye separately using finger • Exam of external eye for pathology

  12. CN 2

  13. CN 3 Oculomotor MOTOR: Pupil constriction Raise eyelids Extraocular movements

  14. CN 4 Trochlear MOTOR downward movement of eye smallest cranial nerve

  15. CN 6 ABDUCENS MOTOR: Lateral eye movement

  16. Evaluation of CN 3,4,6 EYE MOVEMENT

  17. CN 3 Pupil Constriction

  18. CN 5 Trigeminal Motor: movement of mandible Sensory: 3 divisions sensation to face and head

  19. CN 5 MOTOR EVALUATION

  20. CN 5 SENSORY EVALUATION

  21. CN 7 • MOTOR: facial expression • SENSORY: anterior 2/3 of tongue

  22. CN 7 MOTOR EVALUATION

  23. CN 7 SENSORY EVALUATION

  24. CN 8 ACOUSTIC SENSORY - Hearing

  25. CN 8 EVALUATION

  26. CN 9 GLOSSOPHARYNGEAL MOTOR: Movement of soft palate SENSORY: gag reflex taste posterior 1/3 of tongue

  27. CN 9 SENSORY

  28. CN 10 VAGUS MOTOR: Swallowing SENSORY: Sensation around ear

  29. CN 10 EVALUATION SAME EVAL. AS CN 9: gag reflex swallow water

  30. CN 11 SPINAL ACCESSORY MOTOR: Head, neck,shoulder, movement

  31. CN 11 EVALUATION

  32. CN 12 HYPOGLOSSAL MOTOR: Tongue movement

  33. CN 12 EVALUATION

  34. RECORDING FINDINGS UKCD

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