With Apologies to Monty Python: Is Every Cell Sacred?

Since the days of Ramón y Cajal, neuroscientists have been trying to understand and categorize how neurons are specialized, by form, function, and anatomy. Often, the more information we have, the smaller these individual categories can become. Indeed, years ago at a conference, a colleague was describing a very minute and specific population of neurons surrounding a subnucleus of a small brain region.