The<unk>  are found in large veins and arteries such as the aorta and its branches. These small vessels serve to provide blood supply and nourishment for tunica adventitia and outer parts of tunica media of large vessels.
Vasa vasorum
Lymphatic endothelium
Fovea centralis
Node of Ranvier
Corpora quadrigemina
Caliber persistent artery
Neurilemma
Postganglionic nerve fibers