27 Mar Schwann cell

A type of glial cell (neuroglia) that acts like a filled crepe. Its flat, pancake-like processes wrap around axons in the peripheral nervous system to insulate the axon membrane from outside electrical potentials. Thus, you may think of the axon as the cream or fruit filling of a French pastry.
Keywords: neurogliaform
myelin
astrocyte
axon
neuroglia
oligodendrocyte
action potential
References: brain physiology
neurons
neuroscience