Why blood does not clot inside a vessel. What happens if blood clots inside the vessel.
Answers
Answer:
When we injure ourselves and start to bleed, our bodies make sure that the bleeding soon stops by forming a clump of blood (a blood clot) that closes the wound. This reaction is very important, because it ensures that we lose as little blood as possible, stops germs from getting into the wound, and allows the wound to heal.
But sometimes blood clots form in the bloodstream even though there are no external injuries, and blood vessels may become blocked as a result. This can lead to dangerous complications such as a heart attack or stroke. These kinds of blood clots only occur very rarely in healthy people. But certain illnesses and genetic factors can increase the risk of blood clots forming. Many people who have this higher risk take anti-clotting medication as prevention.
Explanation:
hope this helps u...
Answer:
actually in blood fibrinogen is present which is iinactivated form of blood clotting fiber. But when an injury occurs the liver releases clotting factors which are then converted to thrombin. this thrombin then coverts the fibrinogen into fibrin which is activated form and which starts blood clotting in addition to platelets. more over the platelets also show clotting properties only when some certain chemicals are released by the injured vessel wall. under some normal conditions without injury clotting can occur. in this situation if the clots are not dissolved they can cause stroke in brain or heart attack