Neuropil
| Medical Definition: |
A dense intricate feltwork of interwoven fine glial processes, fibrils, synaptic terminals, axons, and dendrites interspersed among the nerve cells in the gray matter of the central nervous system. |
| Guide Notes: |
a dense "felt" of interwoven neuronal components & neuroglia in the CNS; do not confuse with NEUROPIL THREADS, abnormal neuronal structures: read MeSH definitions; A 11 qualif |
Neuropil Categories.
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Neuropil Threads - Abnormal structures located chiefly in distal dendrites and, along with NEUROFIBRILLARY TANGLES and SENILE PLAQUES, constitute the three morphological hallmarks of ALZHEIMER DISEASE. Neuropil threads are made up of straight and paired helical filaments which consist of abnormally phosphorylated microtubule-associated tau proteins. It has been suggested that the threads have a major role in the cognitive impairment seen in Alzheimer disease. |
Neuropil Medical Definitions and Terms
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