The following passage: To distinguish between neurons and glia, Herculano- Houzel injected the vials with a chemical dye that would make all nuclei fluo

The following passage: To distinguish between neurons and glia, Herculano- Houzel injected the vials with a chemical dye that would make all nuclei fluoresce blue under ultraviolet light, and then with another dye to make the nuclei of neurons glow red. You mean that part? It’s about differentiating support infrastructure from the actual cellular operators responsible for cognitive brain function. https://en.wikipedia.org/wiki/Neuroglia https://en.wikipedia.org/wiki/Neuroglia VS. https://en.wikipedia.org/wiki/Neuron https://en.wikipedia.org/wiki/Neuron