a greater variety and quantity of cells with short axons , the presence of neurons with relatively short dendrites , in a greater relative thickness of the upper and deep systems of horizontal neurons , in a small number of axo-axonal synapses in sublayer ia , a more diverse composition of synaptic zones in sublayers iia and iib , the presence of axons in layers ib and iib with certain species specific features of degeneration , the pattern of localization of tectal ganglionic cell projections .
C0007634
cells
C0039062
synapses