head and neck chapter 8

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tigermom23
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14058
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head and neck chapter 8
Updated:
2010-04-21 16:38:21
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chapter 8 nervous system
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  1. two main divisions of the nervous system
    • central nervous system - brain and spinal cord
    • peripheral (edge) nervous system - cranial and spinal nerves
  2. neuron
    building block of the nervous system
  3. neuron consist of...
    • cell body
    • nerve processes(fibers)
  4. nerve
    bundle of neural process outside cns
  5. bundle of neural processes outside cns
    nerve
  6. synapse
    junction between 2 neurons/1 neuron and target organ
  7. innervation
    supply of nerves to an organ or tissue
  8. supply of nerves to a organ or tissue
    innervation
  9. accumulation of neuron cell bodies outside the cns-junction point for nerve impulses
    ganglion
  10. sensory nerve; carries impulses into brain
    afferent nerve
  11. motor nerve; carries impulses away from the brain
    efferent nerves
  12. part of peripheral nervous system; involuntary
    autonomic nervous system
  13. T/F: all autonomic nerves are motor nerves
    true
  14. 2 parts of the autonomic system
    • sympathetic
    • parasympathetic
  15. "fight or flight" - spinal nerves
    sympathetic
  16. rest and digest - primarily cranial nerves
    parasympathetic
  17. T/F: crainial nerves can be sensory, motor, or both
    true
  18. how many crainal nerves are there
    12 pairs
  19. olfactory nerve-sensory-carries sense of smell
    C-I
  20. OPTIC NERVE- sensory carries sense of sight
    CII
  21. oculomotor nerve-motor only supplies most of the muscle of the eyeball
    C-III
  22. TROCHLEAR NERVE-MOTOR ONLY-SUPPLIES "ONE" MUSCLE OF THE EYEBALL
    C-IV
  23. TRIGEMINAL NERVE-IS BOTH SENSORY AND MOTOR-PRIMARLY SENSORY
    C-V
  24. MOST IMPORTANT NERVE IN DENTISTRY
    C-V TRIGEMINAL NERVE
  25. SENSORY NERVE FROM SKIN OF FACE AND HEAD, TEETH, ORAL CAVITY, AND ANTERIOR 2/3 OF THE TONGUE-

    MOTOR NERVE TO MUSCLE OF MASTICATION
    C-V TRIGEMINAL NERVE
  26. OLFACTORY NERVE
    C-I
  27. OPTIC NERVE
    C-II
  28. OCULOMOTOR NERVE
    C-III
  29. TROCHLEAR NERVE
    C-IV
  30. TRIGEMINAL NERVE
    C-V
  31. NERVES THAT COME OFF THE BOTTOM OF THE BRAIN
    CRANIAL NERVES
  32. 4 CRANIAL NERVES THAT ARE BOTH SENSORY AND MOTOR
    • C-V TRIGEMINAL NERVE
    • C-VII FACIAL NERVE
    • C-IX GLOSSOPHARYNGEAL NERVE
    • C-X VAGUS NERVE
  33. SENSORY NERVE ONLY-CARRIES SENSES OF HEARING AND BALANCE
    C-VIII AUDITORY NERVE
  34. BOTH SENSORY AND MOTOR-
    SENSORY: SKIN AROUND EAR AND TASTE AND PAIN ON POSTERIOR 1/3 OF THE TONGUE
    MOTOR: PAROTID GLAND AND STYLOPHARYNGEOUS MUSCLE
    C-IX GLOSSOPHARYNGEAL NERVE
  35. BOTH SENSORY AND MOTOR
    SENSORY: SKIN AROUND EAR AND TASTE FROM EPIGLOTTIS
    MOTOR: MUSCLES OF PALATE, PHARYNX AND LARYNX-ORGANS OF THORAX AND ABDOMEN
    C-X VAGUS NERVE
  36. MOTOR NERVE ONLY-SUPPLIES THE MUSCLES OF THE NECK, SOFT PALATE,AND PHARYNX

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