Term: yolk vasculature
Name: yolk
Synonyms: yolk cell
Definition: Giant syncytial uncleaved cell containing nutrient store for embryonic development in the form of semicrystalline phospholipoprotein and contained within yolk granules.
Ontology: Anatomy Ontology [ZFA:0000084]

Name: vasculature
Synonyms:
Definition: Is an interconnected tubular multi-tissue structure that contains fluid that is actively transported around the organism.
Ontology: Anatomy Ontology [ZFA:0005249]