Term: neural tube mesenchyme
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: mesenchyme
Synonyms:
Definition: A mesh-like cell arrangement, less compact than an epithelium.
Ontology: Anatomy Ontology [ZFA:0000393]