Term: EVL tight junction
Name: EVL
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.
Ontology: Anatomy Ontology [ZFA:0000086]

Name: tight junction
Synonyms: occluding cell junction, occluding junction
Definition: A cell-cell junction that seals cells together in an epithelium in a way that prevents even small molecules from leaking from one side of the sheet to the other.
Ontology: GO: Cellular Component [GO:0070160]    QuickGO    AmiGO