My question is this: Is there a difference (other than the obvious, of course) between blood from a dead person and a live person? To be specific, if you look at a sample under the microscope, can you tell if it's from a dead person or from, for example, a sample from someone who donated at their local bloodbank? And, just out of curiosity, during an autopsy, the blood is drained from the body, right? What happens to it?
Thanks in advance.