Term Name: external yolk syncytial layer
Synonyms: E-YSL
Definition: The portion of the YSL that is outside of the blastoderm margin during epiboly.
Appears at: Blastula:Oblong (3.66h-4.0h)
Evident until: Pharyngula:Prim-15 (30.0h-36.0h)
Ontology: Anatomy Ontology [ZFA:0000309]

Relationships
is part of: yolk syncytial layer
is a type of: portion of tissue

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