Question

why blood flow stops automatically after sometime when you get injured? ​

Answer 1

Answer:

this happens because our blood contain white blood cells which help in in making the plot and stop the bleeding there are platelets present in our blood which help to stop the bleeding

Answer 2

Answer: This happens because of Platelets which forms a fibroin(mesh like) to stop the flow of blood at the sight of injury, stopping further bleeding. Because of this process, your blood clots leaving a temporary purple-blue patch.....

HOPE THIS HELPS YOU : )