6 parts of the body we don't actually need






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I'm sure we all like to think of ourselves as perfect creatures, and the pinnacle of all creation, as far as anatomy goes anyway. But what if I told you there are parts of your body that you don't really need at all? In other words, what if I told you that some of your body parts are completely useless and have no function whatsoever?

You'd probably conclude that I'd hit my head or something. But as it turns out, not only is it true that there are certain body parts that we can do without, but there are also those that we're better off without as well. At least that's the general consensus. So here are some of the body parts creation or evolution (depending on what side of the spectrum you're on) decided to saddle us with for no good reason.

1 THE APPENDIX  


The appendix is a small tube-shaped sac attached to the wall of the large intestine. Remember those painful feelings that necessitate surgery that doctors call appendicitis? Yeah, this is the culprit. 

The appendix has been known to regularly get inflamed in people who later go on to get it removed while reporting no side effects resulting from the lack of it. England alone accounts for about 40,000 cases of appendicitis per annum while, and according to the Journal of Clinical Sciences, 22.1–49.8 out of 100,000 Nigerians are prone to the condition which can be very serious on occasion.

But while the appendix has widely been regarded as having no use in humans, thus being vestigial; researchers at Midwestern University, Arizona, USA speculate that it could be a storehouse for useful bacteria that aid in the fortification of the immune system. 

But that's all there is to the claim, mere speculation. What we do know for sure is that it only has a definite function in herbivores where it aids the breakdown of cellulose and also, that many of us are better off without it. 

Utility rating: Inconclusively useless.

2 MALE NIPPLES


I think this one is pretty self-explanatory. Of what use is the nipple to we male humans? We don't breastfeed neither does it in any way improve our appeal to the opposite sex. So why is it even there in the first place?

The answer goes way back to our time in the womb. As embryos, male and female humans have exactly the same physical characteristics with no gender assigned, its only until much later in our development (7 weeks or more) that we assume our sexes. But for some reason, upon the emergence of our primary and secondary sexual characteristics, we males retain the nipple just like the females.

Scientists speculate that even though we have no use for it, evolution did not deem it necessary to remove the feature since it did no harm anyway.

However, some researchers took a different stand, proposing that the male nipple showed sexual dimorphism (differentiation) and also acts as an erogenous zone just like the female nipple.

When all is said and done though, however, I think we can all agree that it's still mainly useless because, just like women, men are also susceptible to breast cancer. Why suffer for something we don't even use?

Utility rating: Somewhat useless.

3 WISDOM TEETH


The wisdom teeth are two pairs of molars that grow in the innermost part of the mouth at the age of about 17 to 21, and guess what; these parts of the body are irrefutably useless. Why? Not only are they of no use to us, but they can cause excruciating pain when growing in.

Also, they are called wisdom teeth not because they make us any wiser but because they come out when we are nearing adulthood (when it's assumed that we've, hopefully, got some sense in our heads). Not everyone grows them however; but when we do, more often than not, they ultimately end up having to be removed. Some people are known to have healthy sets, though but not everyone is so lucky.

Specifically, about 78% of people have a full set of useless wisdom teeth (22% lack one or more or don't have any at all). Out of this demographic, 24% of people have to get them removed due to impaction which is when they come forcibly in contact with other teeth.

Why is this so? According to research, the human jaw has gotten smaller over time due to diet change and hence, has evolved from the heavy chomping nutcrackers of the early man to what we have today.

But even so, the no longer needed extra teeth continue to grow out in mouths that have no space for them. That's what causes the pain; they push against the teeth already in place, forcing us to book an appointment with the dentist. Ouch!

utility rating: Utterly useless.

4 PALMARIS LONGUS


Here's one that evolutionists hold dear. Regarded as a conclusive proof of evolution and man's ape-ish origins (sorry creationists), this one even has a test that you can try out right now as you read this, but we'll get to that later.

The palmaris longus is a muscle attached to a tendon that stretches from the wrist to the elbow. In monkeys and lemurs, it serves the function of increasing grip strength, being tree climbers; but in humans, it has no function at all.

About 15 to 20% of us lack this muscle and tendon in one or both arms. To check if you have it or not, place your arm on a table and bring your thumb and pinky fingers together as you can see in the picture and lift your wrist slightly. Did you see any tendon? Let us know in the comments section.

The muscle and tendon are so useless, in fact, that surgeons often remove them and use them to perform reconstructive or plastic surgery on people. At least that's one use out of it.

Utility rating: Somewhat useless.

5 Plica semilunaris


Quick question: how many eyelids do we have? If you say two (upper and lower eyelid) you'd be wrong. The answer is actually three but the third one is nonfunctional and therefore, useless.

It is also called the nictitating membrane and it is that little pink triangle found at the corner of the eye near the nose.

If you're wondering exactly what it would look like in use, just observe birds, reptiles and a few mammals. Plica semilunaris is that thin transparent film that these animals flick horizontally to moisten their eyeballs without actually having to blink. It also grants them uninterrupted vision. In cats, for instance, it protects their eyes when hunting or during skirmishes.



All things considered, its probably for the best that we can't utilize our nictitating membranes, as it would have been really creepy!

Utility rating: completely useless

6 THE EAR'S MUSCLES


Ever noticed that animals can move their ears whichever way they want? Backwards, forwards, downwards, upwards, you name it. They mostly do it in reaction to sound to further enhance their hearing. Now, did you know that we humans have the exact same muscles?

Don't get all excited in a hurry because, like the other items on this list, the muscles of the ears are totally useless, being too weak to move the ears at all except in a select few people who can wiggle their ears at will.

So, if you are among the few people who have some control over their ears, congratulations. If not, we'll, don't feel bad, you just happen to be among the majority of people who can't.
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