Term: extension NaK ionocyte
Name: extension
Synonyms: yolk extension
Definition: The posterior elongated region of the yolk cell that forms during the segmentation period.
Ontology: Anatomy Ontology [ZFA:0000106]

Name: NaK ionocyte
Synonyms: NaK-MRC, NaR cell
Definition: Integument ionocyte rich in Na,K-ATPase.
Ontology: Anatomy Ontology [ZFA:0005326]