Cranial Nerves

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Cranial Nerves
2012-03-28 22:08:55
Cranial Nerves head neck NUPT

You're getting on my nerves (if you don't like Keith Urban)
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  1. GSA or somatic sensory
    transmit impulses from skin, muscles and joints to the spinal cord and brain stem
  2. GSA cell body location
    dorsal root ganglia of spinal nerves and sensory ganglia of cranial nerve V, VII, IX, and X
  3. GSE or somatic motor
    innervate skeletal muscles derived embryologically from somites
  4. GSE cell body location
    • ventral horn of the spinal cord and brain stem
    • CN III, IV, VI and XII
  5. GVA or visceral sensory
    convey impulses from structures that contain smooth muscle, cardiac muscle and glands
  6. GVA cell body location
    found in dorsal root ganglia and sensory ganglia of CN IX and X
  7. GVE or visceral motor
    innervate smooth muscle, cardiac muscle, and glands
  8. where are preganglionic sympathetic cells of GVE located?
    in the lateral horn (T1-L2) of the spinal cord
  9. Where are the preganglionic parasympathetic cells of GVE located?
    brain stem (CN III, VII, IX, and X) and the sacral cord (S2,3,4)
  10. Special somatic afferent
    found in those cranial nerves serving special senses of vision (CN III) and hearing and balance (CN VIII)
  11. Special viseral afferent
    transmit impulses from special senses of the visceral type, namely, smell (I) and taste (VII, IX and X)
  12. Special visceral efferent or branchial motor
    innervate skeletal muscles derived embrologically from the branchial arches.
  13. What are the muscles of SVE
    • mm of facial expression
    • masication mm
    • muscles of larynx, pharynx, palate,
    • sternocleidomastoid, trapezii, stylopharyngeous
  14. What are the nerves of the voluntary branchoimeric muscles
    • V
    • VII
    • IX
    • X
    • XI
  15. functional components of olfactory nerve
    SVA (smell)
  16. functional components of optic nerve
  17. functional components of oculomotor nerve
    GSE & parasympathetic GVE
  18. functional components of trochlear
  19. functional components of trigeminal
    GSA and SVE
  20. functional components of abducens
  21. functional components of facial
    • SVE
    • GVE
    • GSA
    • SVA
  22. functional components of vestibulocochlear
    • SSA hearing
    • SSA equilibrium
  23. functional components of glossopharyngeal
    • SVE
    • Parasympathetic GVE
    • GSA and GVA (sensory)
    • SVA (taste)
  24. functional components of vagus
    • SVE
    • GVE
    • GSA
    • GVA
    • SVA (taste)
  25. functional components of accessory cranial portion
    branchial motor SVE
  26. functional components of Accessory Spinal portion
  27. functional components of Hypoglossal
  28. Olfactory SVA peripheral distribution
    Olfactory mucosa (upper part of nasal mucosa)
  29. Optic SS peripheral distribution
  30. oculomotor GSE peripheral distribution
    • superior, inferior and medial recti;
    • inferior oblique; levator palpebrae superioris
  31. Oculomotor GVE peripheral distribution
    sphincter pupillae and ciliaris muscle for pupillary constriction and accommodation

    • Constriction (parasympathetic)
    • dilation (sympathetic)
  32. Trochlear GSE peripheral distribution
    Superior oblique muscle of eye
  33. trigeminal GSA peripheral distribution
    Sensory: Face; cornea; scalp; dura; teeth; mucosa of mouth; anterior 2/3 of tongue; nose and paranasl air sinuses; skin of ear and external acoustic meatus
  34. Trigeminal SVE peripheral distribution
    • Motor root:
    • Muscle of mastication, mylohoid and ANT bell of diastric, tensores tympani and palati
  35. Abducens GSE peripheral distribution
    Lateral rectus muscle of eye
  36. Facial SVE peripheral distribution
    • Motor root:
    • Facial muscles, posterior belloy of digastric, stylohyoid, and stapedius
  37. Facial GVE peripheral distribution
    • Sensory: glands of nose and palate; lacrimal gland
    • Submandibular and sublingal salivary glands
  38. Facial GSA peripheral distribution
    • skin of ear and external acoustic meatus
    • (general)
  39. Facial SVA peripheral distribution
    ANT 2/3 of tongue taste
  40. Vestibulocochlear SSA peripheral distribution
    • Hearing: Organ of corti
    • Equilibrium: semicircular ducts; utricle and saccule
  41. glossopharyngeal SVE peripheral distribution
    Stylopharyngeus muscle
  42. Glossopharyngeal GVE peripheral distribution
    parotid gland
  43. Glossopharyngeal GSA and GVA peripheral distribution
    Skin of external acoustic meatus; mucosa of pharynx, soft palate, Posterior 1/3 of tongue(touch), tympanic cavity; carotid sinus and body
  44. glossopharyngeal SVA peripheral distribution
    Posterior 1/3 of tongue (taste)
  45. Vagus SVE peripheral distribution
    muscles of pharynx, palate, and larynx
  46. Vagus GVE peripheral distribution
    smooth muscle and glands of pharynx, larynx, trachea, and thoracic and abdominal viscera (excluding hindgut)
  47. Vagus GSA peripheral distribution
    skin of ear and external acoustic meatus
  48. Vagus GVA peripheral distribution
    pharynx, larynx, trachea, thoracic and abdominal viscera (excluding hindgut)
  49. Vagus SVA peripheral distribution
    Epiglottis (taste)
  50. Accessory Cranial portion SVE peripheral distribution
    with branches of vagus for muscles of pharynx, palate and larynx
  51. Accessory Spinal portion SVE peripheral distribution
    Sternomastoid and trapezius muscles
  52. Hypoglossal GSE peripheral distribution
    intrinsic and extrinsic muscles of the tongue