Search Ontology:
Anatomy Ontology

notochord

Term ID
ZFA:0000135
Synonyms
  • notocord
Definition
Rod-like principal supportive element of the embryo and larva, present in the midline just ventral to the neural tube, and differentiating during the segmentation period to form large vacuolated epithelial cells and a surrounding sheath of fibrous and elastic layers. Layering of the sheath may differ in structure, thickness and development among groups; in cypriniforms there are actually three very thin layers to the sheath. A functional, well developed notochord is present throughout life in certain basal fish groups but not in cypriniforms. (1)
Appears at
Gastrula:Bud (10.0h-10.33h)
Evident until
Adult (90d-730d, breeding adult)
References
  • TAO:0000135
Figures
Ontology
Anatomy Ontology
Relationships
develops from
has parts
is a type of
Expression
Genes with most Figures
Antibody Labeling
Phenotype
Phenotype caused by Genes