II.Neuroglia (I)Astrocyte >Swell >Reactive Astrogliosis:Undergo hyperplasia and hypertrophy,produce a dense network of processes and forming of glial scar. >(Glial scar:astrocytes do not produce collagen.It is made up predominantly of cytoplasmic processes,with little or no extracellular protein) > Gemistocytic Astrocyte:It is often associated with increased synthesis of glial fibrillary acidic protein (GFAP)
II. Neuroglia ( I ) Astrocyte Swell Reactive Astrogliosis: Undergo hyperplasia and hypertrophy, produce a dense network of processes and forming of glial scar. (Glial scar: astrocytes do not produce collagen. It is made up predominantly of cytoplasmic processes, with little or no extracellular protein) Gemistocytic Astrocyte: It is often associated with increased synthesis of glial fibrillary acidic protein (GFAP)
Reactive Astrogliosis
Reactive Astrogliosis
Gemistocytic Astrocyte In a section stained with hematoxylin and eosin, reactive astrocytes appear plump and display pink cytoplasm
GemistocyticAstrocyte In a section stained with hematoxylin and eosin, reactive astrocytes appear plump and display pink cytoplasm
Il Oligodendrocyte >Satellitosis:A neuron surrounded by five or more than five oligodendrocytes >Demyelination:Normally formed myelin is injured and fragments >Leukodystrophy:An inborn metabolic error interferes with normal myelin development and maintenance. (IIl)Ependymal Cell Ependymal granulations Virus inclusions
( II ) Oligodendrocyte Satellitosis: A neuron surrounded by five or more than five oligodendrocytes Demyelination: Normally formed myelin is injured and fragments Leukodystrophy: An inborn metabolic error interferes with normal myelin development and maintenance. (III) Ependymal Cell Ependymal granulations Virus inclusions