Question

if we cut our wrist ,we die.....but if we cut our whole hand, we don't die. WHY??

Answer 1

our wrist contains important arteries and veins (blood vessels) which supply blood to our body and are directly connected to our heart. the hand is too far away from the wrist and also does'nt contain some of the imp capillary networks. so there is an immediate result of death as soon as we cut our wrist.
 

Answer 2

If we cut our wrist we die because there are some veins or arteries which are connected to our heart and if we cut our hand we won't die because there is no such vein  or artery which is directly connected to our heart...... so we die if we cut our wrist....