Your Heart. It is the most obvious organ. It pumps blood to the rest of your body allowing it to function. Someone with a weak heart would not be able to participate in activities such as rock climbing because of the risk of heart attack.
Hockey or Mountain Climbing
if i had to guess, i would probably say rock climbing or skiing
no ,brain is the most important organ in the body of a human being
I'd say Boxing, Freestyle Wrestling and Crew are in the same league.I'd say that rock climbing is the most challenging sport, because it is not about if you are "built" or not, it is about flexibility, stamina, endurence, and having the right mind for solving tactical positions, it also works your whole body completly.It is, in my opinion, the most rewarding sport, because you are not climbing against others, but only yourself and the rock.Try gymnastics, and tell me how that goes...then you can decide for your self.
All of the organs are very important. The most important is probably "the big organ" which is your intestinal organ. That is what the food eaten goes through after it is broken up, but before it reaches the toilet.
The most popular sport in Yemen is soccer. However, residents participate in hiking, mountain climbing and water sports, such as scuba and surfing.
The lungs.
The brain
lungs
The small intestine.
Ovaries
The Kidneys