Brain.
all of them are pretty vital, i would say the brain is the most vital because you cant get a brain transplant and its damages are irreversible, its also the most sensitive to oxygen deprivation.
The heart is part of the cardio-vascular system and is mostly assosciated with the lungs since they supply the oxygen which is infused into the blood. The heart then transfers the oxygen enriched blood throughout the body.
The Coronary arteries carry blood to the heart so the heart has its own supply of oxygen and nutrients to perform its function.
The heart pumps blood throughout the organism, carrying mainly nutrients that you've eaten, and mainly, oxygen to the brain and to organs' cells.
problems with the heart and circulatory system can shorten life expectancy and lead to lack of oxygen to organs like the brain which could lead to other disease or death
The organs most sensitive to deprivation of oxygen are the heart and the brain.
the heart and lungs
The heart and the brain...
The brain and the heart are the two organs most sensitive to oxygen deprivation. The brain relies heavily on a constant supply of oxygen to function properly, and even a short period of oxygen deprivation can lead to brain damage. Similarly, the heart requires a continuous oxygen supply to maintain its pumping function, and oxygen deprivation can lead to heart muscle damage or even a heart attack.
The brain and heart.
Brain
The brain.
The brain
Brain
Brain
It is dangerous for the mother because of blood loss, loss of clotting ability, and oxygen deprivation to her organs (especially the kidneys and heart). This condition is dangerous for the fetus because of oxygen deprivation
The Brain. But we hope you don't depend on the computer to help you if you have to give first aid in the field, airman. Good luck with your exam.