The whole Brachial artery course is important for the human body because it supplies blood to the arm and hand. If in case of an accident or surgery, the brachial artery is cut out or removed, it can lead to the death of the person. It is so because this artery is very deep inside the muscle. Any removal or cut of this artery will make a human unconscious within 15 seconds and may die within a minimum of 90 seconds. Any weapon like a knife can cause a cut in this artery, leading to the worsening of a case. Therefore, it is not possible to live without the brachial artery.