If you are missing one or both of these muscles in your arms, you are special! The majority of people have these, they are vestigial, and serve no purpose now, except for repurposing the muscle for tendon grafting. Touch your thumb and pinkie together and bend your wrist towards the underside of your arm, a protruding tendon may appear, which is the palmaris longus!
No
Yes
In One Arm
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PLEASE NOTE TO DISREGARD THE IMAGES! I mixed it up!
you put the pictures in the wrong spots. You put the absent picture with "no" (meaning you're not missing those muscles) and the present picture with the "yes" (meaning you are missing them). People are gonna get confused. by the way I have them in both arms so I'm not special lol
Nope both are always visible without flexing... That's what happens when you use your wrists to support and lift your entire body weight and for fine balance control...
Very possible, ideas like this are simply speculations, we can't know for sure! Scientists think the muscle was helpful for climbing, which our ancestors did a lot of. :)
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