neuropil

…other organs, contains centres, or neuropils, such as the optic centres and bodies known as corpora pedunculata. The neuropils function as integrative systems for the anterior sense organs, especially the eyes, and in control of movement; they also are the centres for the initiation of complex behaviour. The deutocerebrum contains…

…dendrites, that connect with the neuropile. Association neurons, usually smaller than motor neurons, are linked with other parts of the nervous system by way of the neuropile.