A blood clot or part of it can leave its original site and travel through the bloodstream and can become lodged in another part of the body - this is called a thromoembolus. A blood clot that lodges in one of the lungs is called a pulmonary embolism, a medical emergency that requires immediate attention. Arterial thrombosis is a blood clot that develops in an artery. If it occurs in the arteries of the heart, it causes a heart attack; if it occurs in the arteries of the brain, it causes a stroke. A blood clot or part of it can leave its original site and travel through the bloodstream and can become lodged in another part of the body - this is an embolism. A blood clot that lodges in one of the lungs is called a pulmonary embolism, a medical emergency that requires immediate attention.
Attribution: Avallain