A distended blood vessel often causes a sac to form which is filled with blood. It is called an aneurysm if it occurs in an artery. Caused by distension or weakening of the vessel wall, it is a sign of disease of the vessels and may rupture. Veins also become distended such as in varicose veins where the vein is commonly swollen, twisted and lengthened as a result of poor circulation. It results in a lowered efficiency in returning blood to the heart.
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
IntimaEndothelium
Angiolith
A distended blood vessel often causes a sac to form which is filled with blood. It is called an aneurysm if it occurs in an artery. Caused by distension or weakening of the vessel wall, it is a sign of disease of the vessels and may rupture. Veins also become distended such as in varicose veins where the vein is commonly swollen, twisted and lengthened as a result of poor circulation. It results in a lowered efficiency in returning blood to the heart.
The lumen is the space within the blood vessel (or within any tubular structure).
Thrombectomy
Varicose vein is a distended vein (blood vessel)..Veins can get distended in many conditions. It can be physiological (normal) or pathological (not normal). Varicose veins are pathological.Varicose veins are distended and mostly tortuous veins, occur mainly due to valvular incompetence or due to obstruction in deep veins.Gravity and Erect posture of humans contribute to the varicose veins.