ch 14 cranial nerves.txt

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Author:
rincrocci
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50124
Filename:
ch 14 cranial nerves.txt
Updated:
2010-12-11 21:24:07
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cranial nerves
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  1. brain lobes
    • makes up the cerebrum
    • 1. frontal
    • 2. parietal
    • 3. temporal
    • 4 occipital
  2. role of frontal
    thought process/personality
  3. role of temporal
    hearing
  4. role of occipital
    visual cortex
  5. role of parietal
    Broca's area/speech
  6. Broca's area
    functions related to speech production
  7. Midbrain
    extends from pons to diancephelon
  8. diencephalon,
    superior to the midbrain, consists of the thalamus, hypothalamus and epithalamus
  9. CerebroSpinalFluid
    clear liquid that protects brain and spinal cord from chem & physical injuries
  10. Brain stem
    • consists of
    • 1. medulla oblongata
    • 2. pons
    • 3. reticular formation
  11. role of medulla oblongata
    involved in respiratory and other visceral actions, such as organ movement. Also aids in balance
  12. role of pons
    controls organs and respitory
  13. role of reticular formation
    aids in SLEEP cycle - injury to this causes a COMA
  14. role of cerebellum
    • controls balance
    • aids in fine motor movements, ie writing
    • aids in learning physical movements, ie basketball players utilize this to play well
  15. Cranial nerves
    • 12 in total, there are two more that are under discussion
    • cranial nerve 0 and cranial nerve 13
  16. possible role of cranial nerve 0
    sexual stimulation, sensory
  17. possible role of cranial nerve 13
    glossal nerve, mainly motor, for speech articulation
  18. CN1 - olfactory nerve
    sensory, transmits sense of SMELL
  19. CN2 - optic nerve
    sensory, transmits visual info
  20. CN3 - ocularmotor nerve
    Mainly motor, aids in eye movement
  21. CN4 - trochlear nerve
    mainly motor, aids in eye movement
  22. CN5 - Trigeminal nerve
    • mainly sensory
    • 3 sensations:
    • V1 - orbital
    • V2 - maxillary
    • V3 - mandibular
  23. CN6 - Abducens nerve
    motor, movement of the eye, usually when damage results in eye directed medially
  24. CN7 - facial nerve
    sensory and motor, helps with facial expressions
  25. CN8 - vestibularcochlear nerve
    sensory, aids in hearing and balance, gravity and rotation
  26. CN9 - Glossoppharyngeal nerve
    • sensor and motor, aids in TASTE
    • posterior 1/3
  27. CN10 - Vagus nerve
    • sensory and motor
    • aids in visceral motor and control of body organs
  28. CN11 - Accessory nerve
    motor, aids in back movement of vertebrae, sternocleidomastoid and trapezius
  29. CN12 - Hypoglossal
    Motor, aids in movement of the tongue during speech and swallowing

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