Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 19, 2025
The external coat, or tunica externa, is composed of fibrous tissue, containing, especially in vessels of medium calibre, some yellow elastic fibres in its deeper layers. In most parts of the body the arteries lie in a sheath of connective tissue, from which fine fibrous processes pass to the tunica externa.
Word Of The Day
Others Looking