What are the most important organs of the human body? The brain, heart, lungs, kidneys, and liver are the most important organs of the human body. The gallbladder, stomach, and pancreas, come next in line. The nervous system and other organ systems are the support these organs have. The most important organs of the human body The brain The brain, also known as the … [Read more...] about Which Body Parts or Organs Can You Live Without?