( 2 ) in the pn-grafted eyes , approximately 20 % of the surviving rgcs regrew their axons into the grafts and ( 3 ) some of the rgc axons that regenerated along the pn grafts bridging the eye and the tectum re-entered the sc , arborized and made synaptic contacts with tectal neurones .
C0004461
axons
C0027882
neurones