There are two schools of thought when it comes to ranking organs in terms of their utility or lack thereof. According to one theory, the least essential parts are those that come in pairs. Giving up an eye or ear wouldn't be too bad, the thinking goes, so long as you keep the other one. It's not life threatening to lose even a lung or a kidney. Still, there's probably a reason the body comes with backups. "It's a good thing to have reserves in case you get sick or have an injury," says Robert Shmerling, a rheumatologist and professor at Harvard Medical School. When you lose a kidney, the one that's left behind must work harder. If it fails, you're in big trouble. Shmerling wonders whether doubled organs may turn out to be even more important: With humans living longer, redundant organs could be handy.
If you want to keep your pairs intact, the other theory dictates that the most disposable body parts would be the ones that seem to have no point. The appendix leads this list, though Shmerling notes that it isn't quite a standalone component. "The appendix is a portion of the digestive tract," he says. Same goes for the tonsils, which may be lumped in with the immune system. So which organ would Shmerling give up if he were forced to choose? The gall bladder. "I'm pretty sure I could do pretty well without it," he says.
Have a burning science question you'd like to see answered in our FYI section? Email it to firstname.lastname@example.org or tweet @popsci hashtag #PopSciFYI.
This article originally appeared in the July 2013 issue of Popular Science. See the rest of the magazine here.
Once the Obama organ leaves the Presidency, the concequence would be minimul or none.
a. An instrument consisting of a number of pipes that sound tones when supplied with air and a keyboard that operates a mechanism controlling the flow of air to the pipes. Also called pipe organ.
b. Any one of various other instruments, such as the electronic organ, that resemble a pipe organ either in mechanism or sound.
2. Biology A differentiated part of an organism, such as an eye, wing, or leaf, that performs a specific function.
3. An instrument or agency dedicated to the performance of specified functions: The FBI is an organ of the Justice Department.
4. An instrument or a means of communication, especially a periodical issued by a political party, business firm, or other group.
It seems strange that of all the organs, the heart has no pair.
Based on usage per unit, the least essential organ is the brain.
An organ is just two or more types of tissue (which are made up of two or more cells, etc) working together to perform a specific function. That means our skin, muscles, bones, blood, brain, etc are all organs. Thus, not all other organs besides the heart are "paired".
Wonder, that comment was so edgy I almost cut myself on it
The interior of the heart contains four chambers and four valves. The upper thin-walled cavities are the right and left atrium or auricle. The lower thick-walled chambers are the right and left ventricle.
Book of anatomy and physiology
So the heart is built with a sort of redundancy, if you think about it, but perhaps others might say we only have one heart too. I suppose it maybe at what detail or perspective you are considering at the time.
And the brain is made up of many different sections and for many who receive some type of brain damage the brain can in many ways relearn and compensate to some degree.
just as Linda explained I am shocked that a mom can profit $6614 in a few weeks on the computer. did you look at this page.... www.bay95.com
I would think a few of my friends brains would be non-essential since they don't use them anyway.....Obama either.