Can you explain to me the cause and what happens to the body during traumatic shock.?

Blood loss: Massive loss of blood causes the organs to fail. Poor blood supply to brain brings on coma. At that point,there is no pain, as far as we can tell. The blood loss also causes the kidneys to shut down, the effectiveness of the heart's pumping ability is decreased and the clotting system fails. The gut becomes leaky and the liver starts to fail. If you survive for a while, there is massive swelling a