Hemorrhage or loss of large amount of blood occurs when there is a rupture in one or more blood vessel. Generally, small cuts, only capillaries are injured. Deeper wounds as in lacerations results in injury of veins and arteries. Bleeding which is severing enough to endanger life seldom occurs except when arteries or veins are cut or damaged.
The averaged adult body contains about 8 quarts of blood. A loss of one pint usually does not have harmful effects. But loss of two pints usually cause shock; and shock increases as the amount of blood loss increases. If half of the blood of the body is lost, death will result. The blood from ruptured capillary is usually brick-red in color, in ruptured capillary, the blood oozes out slowly. Blood coming from the veins is dark red in color. If a vein is cut or served the blood escapes in a steady even flow. An artery on the other hand near the surface, if cut gives out blood in spurts and is synchronized by the beating of the heart, a deeply buried artery that is cut will show a seemingly steady stream