For 10 points, name these cells, containing many dendrites, which carry electrochemical messages through the nervous system.
These entities are immersed in potassium dichromate and silver nitrate and turn black in Golgi staining. Functioning due to changes in action potential, parts of these bodies are surrounded by Schwann cells or glial cells and include the nodes of Ranvier, gaps in their surrounding myelin sheaths. Synaptic gaps border these objects' axons. For 10 points, name these cells, containing many dendrites, which carry electrochemical messages through the nervous system.
These entities are immersed in potassium dichromate and silver nitrate and turn black in Golgi staining.
{neurons} [accept {axons} before mention]