cells of human's brain. neuron and glial cells (microglia, astrocyte and oligodendrocyte

neuron neurons nerve cell system myelin axon nervous synapse anatomy sensory structure human brain diagram body health medical motor neurone neural sheath spinal science organ nucleus scientific biology cord dendrites cells dendrite synaptic microglia astrocyte glial central types glia oligodendrocyte disease neuroglia cns tissue schwann neurology medicine alzheimer human's brain oligodendrocyte vector educational biological use