An outermost connective tissue covering of an organ, vessel, or other structure[WP]. [ http://en.wikipedia.org/wiki/Adventitia ]

This is just here as a test because I lose it

Term information

Subsets

grouping_class, human_reference_atlas

RO 0002175

http://purl.obolibrary.org/obo/NCBITaxon_9606

depicted by

http://upload.wikimedia.org/wikipedia/commons/e/e8/Illu_esophageal_layers.jpg

has narrow synonym

tunica externa

tunica advetitia

id

UBERON:0005742