Figure 1.

Neurite initiation and differentiation. (a) Cell surface inhomogeneities cause instabilities that lead to the formation of broad lamellipodia that condense into short neurites. (b) Competition for a growth-permitting chemical produced in the cell body can lead to the fastest growing neurite becoming the only outgrowing neurite, characteristic of axonal differentiation.

Graham and van Ooyen BMC Neuroscience 2006 7(Suppl 1):S9   doi:10.1186/1471-2202-7-S1-S9