nerve tissue 2 histology
TRANSCRIPT
NEUROGLIA
GLIA CELLSIN THE PNS
GLIA CELLSIN THE CNS
- Schwann cell
- Satellite cell
- Oligodendrocytes
- Microglia
- Astrocyte
- Ependyma
Myelin formation in nerve fibers:
Schwann-cell(PNS)
Oligodendrocyte(CNS)
PERIPHERAL NERVE IN TRANSVERSE SECTION
PERIPHERAL NERVE IN TRANSVERSE SECTION
ParaneuriumEpineurium
Perineurium
EndoneuriumAdipose tissue
Artery, Vein
PERIPHERAL NERVE IN TRANSVERSE SECTION72. Peripheral nerve, HE. (low power magnification)
Axon
Myelin sheath
Perineurium
Schwann-cellnucleus
Nucleus of fibrocyte
Axon
Perineurium
Endoneurium
Myelin sheath
PERIPHERAL NERVE IN TRANSVERSE SECTION
Axon
74. Peripheral nerve, Osmium
PERIPHERAL NERVE IN LONGITUDINAL SECTION
SCHMIDT- LANTERMANN CLEFTS
PERIPHERAL NERVE IN LONGITUDINAL SECTION73. Peripheral nerve, HE.
Axon
Schwann cellnucleus
Nucleus of fibrocyte
Node of Ranvier
PERIPHERAL NERVE IN LONGITUDINAL SECTION73. Peripheral nerve, HE.
Nodes of Ranvier
Schwann cellnucleus
Nodes of Ranvier
Axon
Myelin sheath
PERIPHERAL NERVE IN LONGITUDINAL SECTION
75. Peripheral nerve, Osmium
Pseudounipolar neurons
Satellite cell nucleus
Schwann cell nucleus
GLIA CELLS IN THE PNS
GlialGlial ce llsce lls inin thethe CNSCNS are m adeare m ade o f o f as tro cyte sas tro cyte s , , o ligo de n dro cyte so ligo de n dro cyte s , ,
e pe n dym ale pe n dym al ce lls , an d ce lls , an d m icro glialm icro glialce lls .ce lls .
Main functions of the astrocytes:
-structural support
-repair processes
-blood-brain barrier
-metabolic exchanges
- scar-making cells
86. Astrocytes, GFAP
ASTROCYTES
Perivascularlimiting membrane
Astrocytes
Capillary