perivitelline fluid

Term ID

ZFA:0005943

Synonyms

Definition

Extraembryonic fluid that fills the space between the embryo and the chorion. Provides mechanical cushion, defense from pathogens and helps maintain osmotic balance. (1)

Appears at

Zygote:1-cell (0.0h-0.75h)

Evident until

Pharyngula:High-pec (42.0h-48.0h)

References

Ontology

Anatomy Ontology