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Nerve system 5.5
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Nerve system 5.5

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Transcript

  • 1. – Sensory – Integrate – Motor
  • 2. : • – Brain – Spinal Cord – Granglia – Nerve
  • 3. • Co-ordinating fiber • paramecium Cilia
  • 4. • Spong :
  • 5. • Flat worm and Round worm – nerveganglion) brain) – nerve cord)
  • 6. • Annelid, Arthropod, Mollusk
  • 7. – – –
  • 8. • • •
  • 9. : Nerve Cell Neuron
  • 10. : Nerve Cell Neuron • – cell body • ER, Golgi body – nerve fiber • • cell body dendrite
  • 11. : Nerve Cell Neuron
  • 12. : Nerve Cell Neuron
  • 13. : Nerve Cell Neuron
  • 14. : Nerve Cell Neuron • myelin sheath • Schawaan cell)
  • 15. : Nerve Cell Neuron
  • 16. : Nerve Cell Neuron
  • 17. : sensory neuron• : motor neuron• : association neuron •
  • 18. • • • Axon •
  • 19. • •
  • 20. • Dendrite Axon •
  • 21. • Axon • Dendrite • pseudounipolar neuron
  • 22. : •Astrocyte – CSF –
  • 23. :
  • 24. :
  • 25. :
  • 26. : - A.L. hodgkin) A.F. huxley) - microelectrode) - cathode rayoscilloscope) -
  • 27. : - resting membrane potential)
  • 28. :
  • 29. : - - -
  • 30. : - Na+ Cl- K+ - K+ Na+ Cl-
  • 31. : - ATP Na+ K+ Na+:2 K+
  • 32. :
  • 33. :
  • 34.
  • 35. :
  • 36. :
  • 37. : -Threshold Potential -Depolarization
  • 38. : -Repolarization K+ +50 mV -
  • 39. : -Action Potential Nerve Impulse
  • 40. : - -sodium potassium pump - Active
  • 41. :
  • 42. : -Nerve cell Myelin Sheath Axon -Nerve cell Myelin Sheath Action Potential Node of Ranvier
  • 43. :
  • 44. :
  • 45. : 1. Myelin Sheath 2. Myelin Sheath Myelin Sheath
  • 46. :
  • 47. : -Otto Loewi - Neurotransmitter
  • 48. : Neurotransmitter 1. Acetylcholine : 2. Norepineprine (NE)
  • 49. : Presynaptic neuron - - -
  • 50. :
  • 51. :
  • 52. : Postsynaptic neuron - Postsynaptic neuron Depolarization Hyperpolarization
  • 53. :
  • 54. • • Meninges – : Dura Mater – :Arachnoid Mater – :Pia Mater
  • 55. • Cerebrospinal fluid (CSF) – – venticle –
  • 56. : • • • •
  • 57. :
  • 58. : • • spinal nerve
  • 59. :
  • 60. : • H / – dorsal horn) – 2 ventral horn)
  • 61. :• dorsal root) • Ventral root)
  • 62. :• • • • •
  • 63. : •
  • 64. : •
  • 65. : • •

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