1. PALMARIS LONGUS
The palmaris longus is a muscle attached to a tendon that stretches from the wrist to the elbow. In monkeys and lemurs, it helps function of increasing grip strength for monkies and lemurs being tree climbers but in humans, its simply useless.
Few 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 chair and bring your thumb and pinky fingers together and you might see it as it comes out or not. It does nothing in the body as grip and strength still comes you muscle.
2. Plica semilunaris
When you ask someone how many eye lids do they have, they will say two which is wrong. It's 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.
Its only useful in reptiles and few mammals. It's just a thin transparent film that these animals flick horizontally to moisten their eyeballs without actually having to blink. It also grants them uninterrupted vision. Like in cats, it protects their eyes when hunting or during skirmishes. So why does it have to be useless in human, guess that an unanswered question. The fact is it doesn't perform any important functions in humans.
3. THE EAR'S MUSCLES
This muscles is very useful in animal as it's a reaction to sound and when the muscles give rise to the ear it enhances sharp hearing capabilities that we human would not be able to hear. We humans have the same muscle which doesn't do any things for the ear rather than occupying reasonable amount of space.
Content created and supplied by: Silverdangerous (via Opera News )
Opera News is a free to use platform and the views and opinions expressed herein are solely those of the author and do not represent, reflect or express the views of Opera News. Any/all written content and images displayed are provided by the blogger/author, appear herein as submitted by the blogger/author and are unedited by Opera News. Opera News does not consent to nor does it condone the posting of any content that violates the rights (including the copyrights) of any third party, nor content that may malign, inter alia, any religion, ethnic group, organization, gender, company, or individual. Opera News furthermore does not condone the use of our platform for the purposes encouraging/endorsing hate speech, violation of human rights and/or utterances of a defamatory nature. If the content contained herein violates any of your rights, including those of copyright, and/or violates any the above mentioned factors, you are requested to immediately notify us using via the following email address operanews-external(at)opera.com and/or report the article using the available reporting functionality built into our Platform See More