thrombus

throm·bus

T0189700 (thrŏm′bəs)n. pl. throm·bi (-bī) A fibrinous clot formed in a blood vessel or chamber of the heart.

[New Latin, from Greek thrombos, clot.]

thrombus

(ˈθrɒmbəs) n, pl -bi (-baɪ) (Pathology) a clot of coagulated blood that forms within a blood vessel or inside the heart and remains at the site of its formation, often impeding the flow of blood. Compare embolus[C17: from New Latin, from Greek thrombos lump, of obscure origin]

throm•bus

(ˈθrɒm bəs)

n., pl. -bi (-bī). a fibrinous clot that forms in and obstructs a blood vessel, or that forms in one of the chambers of the heart. [1685–95; < New Latin < Greek thrómbos clot, lump]

thrombus

A blood clot on the lining of a blood vessel, such as an artery or vein.

Thesaurus

Noun

thrombus - a blood clot formed within a blood vessel and remaining attached to its place of originclot, coagulum - a lump of material formed from the content of a liquidthrombosis - the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel

Translations

thrombustrombo

Thrombus

thrombus

[′thräm·bəs] (medicine) A blood clot occurring on the wall of a blood vessel where the endothelium is damaged.

Thrombus

a clot of blood formed during life.in the lumen of a blood vessel or in the heart. In a broader sense, extravascular clots of blood that form during bleeding, as well as clots of lymph in the lymphatics are also called thrombi.

The formation of a thrombus consists of the following stages: agglutination of platelets, coagulation of fibrinogen, agglutination of red blood cells, and precipitation of plasma proteins. Thrombi may be white, red, laminated, or hyaline. A white thrombus consists of platelets, fibrin, and white blood cells and is formed slowly during rapid blood flow, generally in arteries. A red thrombus, in which red blood cells predominate, forms rapidly during slow blood flow, generally in veins. The most common type of thrombus is the laminated thrombus, which has a layered structure and crimped surface and contains fragments of white and red thrombi. It is attached to the endothelium of a blood vessel, generally that of a vein; this differentiates it from a postmortem thrombus. A hyaline thrombus forms in blood vessels of the capillary bed and consists of a homogenized mass of protein.

A thrombus may be parietal or obstructive. A parietal thrombus forms within the heart in endocarditis and heart disease, in large arteries in atherosclerosis, and in veins in thrombophlebitis. As a parietal thrombus grows, it becomes obstructive, generally in small arteries and veins. A thrombus that grows rapidly into the lumen of a vessel is called progressive, and one that originates in cardiac insufficiency is called congestive. A thrombus that forms in aneurysms is called dilatational; one that is unattached within an atrium is called spherical. A thrombus can dissolve or can grow connective tissue, a process called organization. Thin-walled blood vessels may appear in this tissue (canalization), or calcium salts may be deposited (calcification). A thrombus may cause an embolism or may become purulent, a condition accompanied by a thrombobacterial embolism and leading to sepsis.

V. V. SEROV

thrombus

[throm´bus] a stationary blood clot along the wall of a blood vessel, frequently causing vascular obstruction. Some authorities differentiate thrombus formation from simple coagulation or clot formation. See also embolus.

Sites of thrombus formation. From Damjanov, 1996.mural thrombus one attached to the wall of the heart adjacent to an area of diseased endocardium, or to the aortic wall overlying an intimal lesion. See also parietal thrombus.occluding thrombus one that occupies the entire lumen of a vessel and obstructs blood flow.parietal thrombus one attached to a vessel or heart wall; see also mural thrombus.

throm·bus

, pl.

throm·bi

(throm'bŭs, -bī), A clot in the cardiovascular systems formed during life from constituents of blood; it may be occlusive or attached to the vessel or heart wall without obstructing the lumen (mural thrombus). [L. fr. G. thrombos, a clot]

thrombus

(thrŏm′bəs)n. pl. throm·bi (-bī) A fibrinous clot formed in a blood vessel or chamber of the heart.

thrombus

Hematology An intravascular blood clot formed in vivo from fibrin thread accumulation around a platelet plug. See Deep vein thrombosis, Pulmonary thromboembolism.

throm·bus

, pl. thrombi (throm'bŭs, -bī) A clot in the cardiovascular system formed during life from constituents of blood; it may be occlusive or attached to the vessel or heart wall without obstructing the lumen (mural thrombus).
Synonym(s): blood clot. [L. fr. G. thrombos, a clot]

thrombus

A blood clot forming especially on the wall of a blood vessel. This is commonly the result of local damage to the inner lining of the vessel (the endothelium).

Thrombus

Formation of a blood clot within the vascular system. A thrombus becomes an embolism if it breaks away and blocks a blood vessel.Mentioned in: Renal Artery Occlusion, Thrombophlebitis, Vena Cava Filter, Venous Insufficiency

throm·bus

Patient discussion about thrombus

Q. How can I prevent blood clots? I am 45 years old and am supposed to go on a business trip overseas. The flight itself is 12 hours long and then I have to continue traveling by bus. Could this cause me to have blood clots? If so, how can I prevent it?A. Always walk as much as you can on the plane. Also, rotate your ankels in circles. Sometimes try to use your ankels and make the alphabet with them. Have fun..

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Words related to thrombus

noun a blood clot formed within a blood vessel and remaining attached to its place of origin

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