The outermost layer of a blood vessel, composed mainly of fibrous tissue. [ https://www.worldcat.org/search?q=bn%3A0073040584 http://en.wikipedia.org/wiki/Tunica_externa_(vessels) ]
Synonyms: adventitia externa tunica adventitia tunica adventitia of vessel
This is just here as a test because I lose it
Term information
database
cross reference
- SCTID:61066005
- Wikipedia:Tunica_externa_(vessels)
- BTO:0002010
- EMAPA:36299
- NCIT:C33818
Term relations
Subclass of:
- blood vessel layer
- adventitia
- composed primarily of some fibrous connective tissue
- has quality some collagenous