The<unk>  is the now fundamental idea that<unk> s are the basic structural and functional units of the nervous system.  The theory was proposed by Heinrich Wilhelm Gottfried von Waldeyer-Hartz  with evidence given by Santiago Ramón y Cajal in the late 19th century.  It holds that<unk> s are discrete cells (not connected in a meshwork), which are metabolically distinct units with cell bodies (somata), axons, and dendrites.  The Law of Dynamic Polarization further states that neural transmission goes only in one direction, from dendrites toward axons.
Neuron doctrine
Neurolemma
Bryostatin
Somatrem
Gasotransmitter
Eosin
Epoophoron
Myotilin