Editing Neuropil (section)

==Location==
Neuropil has been found in the following regions: outer neocortex layer, [[barrel cortex]], [[inner plexiform layer]] and [[outer plexiform layer]], [[posterior pituitary]], and glomeruli of the [[cerebellum]]. These are all found in humans, with the exception of the barrel cortex, but many species have counterparts similar to our own regions of neuropil. However, the degree of similarity depends upon the composition of neuropil being compared. The concentrations of neuropil within certain regions are important to determine because simply using the proportions of the different postsynaptic elements does not verify the necessary, conclusive evidence. Comparing the concentrations can determine whether or not proportions of different postsynaptic elements contacted a particular axonal pathway. Relative concentrations could signify a reflection of different postsynaptic elements in the neuropil or show that axons sought out and formed synapses only with specific postsynaptic elements.<ref name="White">{{cite book|last1=White|first1=Edward L.|title=Cortical Circuits Synaptic Organization of the Cerebral Cortex Structure, Function, and Theory|year=1989|publisher=Birkhäuser Boston|location=Boston|isbn=978-0-8176-3402-5|first2=Asaf|last2=Keller|author3=Introduction by Thomas A. Woolsey}}</ref>