primary choana

Term ID

UBERON:0005931

Synonyms

Definition

initial opening of the nasal pits and olfactory sac of the embryo into the rostral part of the primordial oronasal cavity, before the formation of the secondary palate. http://www.drugs.com/dict/primary-choana.html

References

• EHDAA:9087
• EMAPA:17851
• MA:0001322

Ontology

Uberon Ontology