Breathing and Exchange of Gases Question 28
28. Which one of the following organs in the human body is most affected due to shortage of oxygen?
(a) intestine
(b) skin
(c) kidney
(d) brain
Show Answer
Answer : d
Hints & Solution
(d) Brain is the most vital organ. It stops functioning in the absence of $O_2$. Brain death is a legal definition of death. It is the complete stopping of all brain function and cannot be reversed. It means that, because of extreme and serious trauma or injury to the brain, the body’s blood supply to the brain is blocked, and the brain dies. Brain death is death. It is permanent.
