Growth cone morphology, axon trajectory and branching patterns in the neonatal rat corpus callosum

Abstract

The pattern of outgrowth of visual callosal axons was studied in neonatal rats. Both the pioneer axons and the main fascicle grow laterally and ventrally past their topographically appropriate target. Side branches of these axons penetrate the overlying gray matter in the target area. Growth cones with the most complex morphologies were seen in the midline area. © 1990.