Term: neural tube ventral side
Name: neural tube
Synonyms: presumptive central nervous system
Definition: Portion of tissue that is the cavity-containing primordium of the central nervous system, developing from the neural rod in the late segmentation period.
Ontology: Anatomy Ontology [ZFA:0001135]

Name: ventral side
Synonyms: ventral
Definition: An anatomical region that is the entire part of an anatomical structure ventral to a horizontal plane and bounded on one side by the same horizontal plane.
Ontology: Spatial Ontology [BSPO:0000068]