part_of
part of
part of
develops_from
develops from
anatomical entity
anatomical entity
neural tube
embryonic structure
pre-chordal neural plate
anterior neural tube
AAO:0011012
UBERON:0003080
TODO - add grouping class for the anterior end of the neural tube at all stages
ZFA:0007038
VHOG:0001384
(...) at some stage of its development, every chordate exhibits five uniquely derived characters or synapomorphies of the group: (...) (4) a single, tubular nerve cord that is located dorsal to the notochord (...).[well established][VHOG]
uberon
TAO:0007038
XAO:0000307