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Blood vessels are the structures of the circulatory system that transport blood throughout the human body. [ 1] These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away from the tissues. Blood vessels are needed to sustain life, because all of the body's tissues rely on ...
Stenoses. CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury. Pronunciation. / stəˈnoʊsɪs / [ 1][ 2] Stenosis (from Ancient Greek στενός (stenós) 'narrow') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. It is also sometimes called a ...
Hemostasis occurs when blood is present outside of the body or blood vessels. It is the innate response for the body to stop bleeding and loss of blood. During hemostasis three steps occur in a rapid sequence. Vascular spasm is the first response as the blood vessels constrict to allow less blood to be lost.
Vascular surgery is a surgical subspecialty in which vascular diseases involving the arteries, veins, or lymphatic vessels, are managed by medical therapy, minimally-invasive catheter procedures and surgical reconstruction. The specialty evolved from general and cardiovascular surgery where it refined the management of just the vessels, no ...
Vascular disease is a class of diseases of the vessels of the circulatory system in the body, including blood vessels – the arteries and veins, and the lymphatic vessels. Vascular disease is a subgroup of cardiovascular disease. Disorders in this vast network of blood and lymph vessels can cause a range of health problems that can sometimes ...
An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. [ 1] Aneurysms may be a result of a hereditary condition or an acquired disease. Aneurysms can also be a nidus (starting point) for clot formation ( thrombosis) and embolization.
duct, blood vessel: Latin vās, vessel, dish, vase vasoconstriction: vasculo-blood vessel: Latin vāsculum: cardiovascular: ven-of or pertaining to the veins, venous blood, and the vascular system: Latin vēna, blood-vessel, vein venule, venospasm: ventr(o)-of or pertaining to the belly, the stomach cavities Latin venter, belly, stomach, womb ...
Vasodilation. Vasodilation, also known as vasorelaxation, is the widening of blood vessels. [ 1] It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. [ 2] Blood vessel walls are composed of endothelial tissue and a basal membrane lining the lumen of ...