]> neural keel TAO:0000131 EFO:0003497 ZFA:0000131 uberon presumptive central nervous system UBERON:0007135 An intermediate stage (between the neural plate and neural rod) during the early segmentation period in the morphogenesis of the central nervous system primordium; the keel is roughly triangular shaped in cross section. An intermediate stage (between the neural plate and neural rod) during the early segmentation period in the morphogenesis of the central nervous system primordium; the keel is roughly triangular shaped in cross section. Kimmel et al, 1995.[TAO] neural keel develops_from develops from develops from neural plate future central nervous system