Term Name: adventitia
Synonyms: tunica advetitia, tunica externa
Definition: An outermost connective tissue covering of an organ, vessel, or other structure[WP].
Ontology: Cell Ontology [UBERON:0005742]

Relationships
has parts: adventitial cell
is a type of: organ component layer
has subtype: adventitia of ductus deferens adventitia of epididymis adventitia of esophagus adventitia of seminal vesicle adventitia of ureter swim bladder tunica externa swim bladder tunica interna tunica adventitia of blood vessel