The Trees Inside Our Brain | Page 18

What are other examples of the Purkinje pattern in nature? Purkinje cells exhibit the most complex dendritic branches of all neurons. The dendrites of a Purkinje cell begin with one large branch that splits into two smaller branches, which further divide into medium sized branches, that eventually split into many tiny, winding dendrites in an almost fractal nature. What is so visually striking about a Purkinje cell is how closely it resembles the shape of a tree. Above ground, trees have a thick trunk that gradually divides into increasingly smaller branches. This tree shape, or Purkinje pattern, is found both microscopically and macroscopically across nature. In addition to trees and neurons, the Purkinje pattern appears in nature in antlers, coral, blood vessels, river tributaries, and broccoli, to name a few. Even beyond nature, we have found virtual ways to use the Purkinje pattern in phone–tree networks, outlines with bullet points, and organizational file folders on computers. We use this structure to add clarity and efficiency to our lives, and we can speculate that it formed in nature so many times for a similar reason.