Search results
Results from the WOW.Com Content Network
Blood squirt (blood spurt, blood spray, blood gush, or blood jet) is a projectile expulsion of blood when an artery is ruptured. Blood pressure causes the blood to bleed out at a rapid, intermittent rate in a spray or jet, coinciding with the pulse, rather than the slower, but steady flow of venous bleeding.
External bleeding is generally described in terms of the origin of the blood flow by vessel type. The basic categories of external bleeding are: Arterial bleeding: As the name suggests, blood flow originating in an artery. With this type of bleeding, the blood is typically bright red to yellowish in colour, due to the high degree of oxygenation.
Arterial thrombosis is the formation of a thrombus within an artery. In most cases, arterial thrombosis follows rupture of atheroma (a fat-rich deposit in the blood vessel wall), and is therefore referred to as atherothrombosis. Arterial embolism occurs when clots then migrate downstream and can affect any organ. [12]
Arterial emboli form in the left side of the heart or the main arteries, they impact in body tissues but not the lungs, commonly in the brain and the small vessels in the upper and lower limbs; Venous emboli arise in veins (for example emboli which form from deep venous thrombosis or DVT) and these impact in the lung (see pulmonary embolism).
Infarction occurs as a result of prolonged ischemia, which is the insufficient supply of oxygen and nutrition to an area of tissue due to a disruption in blood supply.The blood vessel supplying the affected area of tissue may be blocked due to an obstruction in the vessel (e.g., an arterial embolus, thrombus, or atherosclerotic plaque), compressed by something outside of the vessel causing it ...
As a result of this blockage, blood flow in the vessel stops—a condition called thromboembolism. [ 1 ] Thromboembolism is a condition in which a blood clot ( thrombus ) breaks off from its original site and travels through the bloodstream (as an embolus ) to obstruct a blood vessel, causing tissue ischemia and organ damage.
Possible complications of arterial embolism depend on the site of the obstruction: In the heart it can cause myocardial infarction [2] In the brain, it can cause a transient ischemic attack (TIA), [2] and, in prolonged blood obstruction, stroke. [2] Blockage of arteries that supply arms or legs may result in necrosis and gangrene [1]
A thrombus (pl. thrombi), colloquially called a blood clot, is the final product of the blood coagulation step in hemostasis. There are two components to a thrombus: aggregated platelets and red blood cells that form a plug, and a mesh of cross-linked fibrin protein. The substance making up a thrombus is sometimes called cruor.