The nervous system is comprised of two primary cell types: neurons and glial cells ... greater than 0.2 μm are myelinated. In cross section, the myelinated axon appears as a nearly circular ...

This explainer outlines how neurons and glial cells coordinate electrical and chemical signals to form complex brain networks that govern thought, behavior, and consciousness. It also explores how ...

To travel from the axon of one neuron to the dendrite of another neuron, a signal must cross the ... system. Glial cells provide structural and other kinds of support to neurons and help to ...

the possibility that viruses such as SARS-CoV-2 could infect neurons or glial cells in our brain is less well documented, with reports that show contradictory results. Up to one third of COVID-19 ...