Intima
Endothelium
Phlebitis is the medical term meaning inflammation of a blood vessel. (Thrombophlebitis is the medical term meaning inflammation of a blood vessel with a clot.)
Angionecrosis
angiographic
Avascular is the medical term meaning without blood vessels.
Extravasate means to leak out side of a blood vessel.
telangiectasia
Angiolith
The lumen is the space within the blood vessel (or within any tubular structure).
Thrombectomy
Vasoconstriction is the normal narrowing of a blood vessel.
Tunica interna
The tunic intima is the innermost layer of a blood vessel. It has a slic surface that minimizes friction, allowing blood to move through the lumen.