Term Name:	primary neuron
Synonyms:
Definition:	Primary neurons are neurons develop shortly after gastrulation during early segmentation stages, between 10-12 hpf, before the neural tube is formed. Each neuron occurs in a stereotyped location along the neuraxis. Axons from these cells grow via a growth cone pioneering a stereotyped pathway. These axons form the pattern of the early nervous system.
Appears at:	Segmentation:1-4 somites (10.33h-11.66h)
Evident until:	Larval:Day 6 (144.0h-168.0h)
Ontology:	Anatomy Ontology [ZFA:0009242]

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