Term Name: polster
Synonyms: pillow
Definition: The hatching gland rudiment at the time it underlies the forebrain during the early segmentation period.
Appears at: Gastrula:Bud (10.0h-10.33h)
Evident until: Pharyngula:Prim-5 (24.0h-30.0h)
Ontology: Anatomy Ontology [ZFA:0000058]

Relationships
develops from: anterior axial hypoblast
develops into: hatching gland
is part of: prechordal plate
is a type of: embryonic structure

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