EVL

Term ID

ZFA:0000086

Synonyms

• enveloping layer

Definition

Outermost monolayer of cells surrounding the embryo that become very flattened in the blastula and give rise to the periderm. Sometimes used synonymously with periderm. (1)

Appears at

Blastula:30%-epiboly (4.66h-5.25h)

Evident until

Gastrula:90%-epiboly (9.0h-10.0h)

References

• TAO:0000086

Figures

Ontology

Anatomy Ontology