paraneurons are those cells which have not been designated as neurons but are recognized as closely related to neurons on the basis of their fine structure ( possession of neurosecretion-like and synaptic vesicle-like granules/vacuoles ) , metabolism ( production of neurosecretion- and neurotransmitter-like substances ) and origin ( evidenced or proposed neuroectodermal ) .
C0007634
cells
C0042219
vacuoles