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Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
Nervous tissue i
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Nervous tissue i

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  • 1. Glial Ce ll Neural tissue consists of: n e u ro n s and glial ce lls N e u ro n s
  • 2. MAIN TYPES OF NEURONES,ACCORDONG TO THE MORPHOLOGY:UNIPOLARBIPOLARPSEUDOUNIPOLARMULTIPOLAR
  • 3. PSEUDOUNIPOLAR NEURONES76. Spinal ganglion, HE. (low power magnification) Pseudounipolar neurones (perikaryon) Peripheral nerve fibers
  • 4. PSEUDOUNIPOLAR NEURONES 76. Spinal ganglion, HE. (high power magnification)Pseudounipolar neurones-perikaryon(nucleus, nucleolus) Satellite cell nucleusPeripheral nerve fibers A-cell D-cell Axon Schwann cell nucleus
  • 5. MULTIPOLAR NEURONES I. 79. Autonomic ganglion, Silver-impregnationPerikaryon Nerve fibers
  • 6. Central canal Ventral horn(Deiters motoneurones) Segmet
  • 7. MULTIPOLAR NEURONES IIa. Deiters motoneurones 80. Spinal cord, HE (low power magnification) Central canal Gray matterWhite matter Ventral horn (Deiters motoneurones)
  • 8. MULTIPOLAR NEURONES IIb. Deiters motoneurones 80. Spinal cord, HE (medium power magnification)Multipolarneurones Ventral horn White matter
  • 9. MULTIPOLAR NEURONES IIc. Deiters motoneurones 80. Spinal cord, HE (high power magnification) Multipolar neurone Glial cell nucleusCapillary
  • 10. MULTIPOLAR NEURONES IId. Deiters motoneurones 80. Spinal cord, HE (high power magnification) Nucleus Multipolar neurone Nucleolus Glial cell nucleusCapillary
  • 11. MULTIPOLAR NEURONES IIe. Deiters motoneurones 80. Spinal cord, HE (high power magnification) Glial cell nucleusMultipolar neurone Nissl-substance Nucleolus Nucleus
  • 12. NEUROGLIAGLIA CELLS GLIA CELLSIN THE PNS IN THE CNS- Schwann cell - Oligodendrocytes- Satellite cell - Microglia - Astrocyte - Ependyma
  • 13. Myelin formation in nerve fibers:Schwann-cell Oligodendrocyte (PNS) (CNS)
  • 14. PERIPHERAL NERVE IN TRANSVERSE SECTION
  • 15. PERIPHERAL NERVE IN TRANSVERSE SECTION Paraneurium Epineurium PerineuriumAdipose tissue EndoneuriumArtery, Vein
  • 16. PERIPHERAL NERVE IN TRANSVERSE SECTION 72. Peripheral nerve, HE. (low power magnification) PerineuriumSchwann-cell nucleus Axon Myelin sheath Nucleus of fibrocyte
  • 17. PERIPHERAL NERVE IN LONGITUDINAL SECTION
  • 18. SCHMIDT- LANTERMANN CLEFTS
  • 19. PERIPHERAL NERVE IN LONGITUDINAL SECTION 73. Peripheral nerve, HE.Nucleus of fibrocyte Node of Ranvier Schwann cell nucleus Axon
  • 20. PERIPHERAL NERVE IN LONGITUDINAL SECTION 73. Peripheral nerve, HE. Schwann cell nucleus Nodes of Ranvier
  • 21. GLIA CELLS IN THE PNSPseudounipolar neurons Satellite cell nucleus Schwann cell nucleus
  • 22. Glial ce lls in th e CN S are m ad e o fas tro cyte s , o ligo d e n d ro cyte s ,e p e n d ym al ce lls , an d m icro glialce lls .
  • 23. Main functions of the astrocytes: -structural support -repair processes -blood-brain barrier -metabolic exchanges - scar-making cells
  • 24. ASTROCYTES 86. Astrocytes, GFAP Capillary Astrocytes Perivascularlimiting membrane

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