Growth and Differentiation in the Nervous System 275 



Migration in Telencephalon 



FIG. 5. Diagrammatic illustration of the migration of the epibasal central nuclei 

 in the avian telencephalon. In a, the black and white arrows indicate the direction 

 of movement of the two cell populations from their early formation at 7 days to 

 the completion of the process at 12 days. In b, the two migrating populations are 

 represented. ED. nucleus epibasalis dorsalis; ECM. nucleus epibasalis centralis, 

 pars medialis; ECP. nucleus epibasalis centralis, pars posterior. 



