The Surprising Connection Between Your Tendon and Evolution (Page 3 ) | September 13, 2024
Annonce:
This tendon is connected to an ancient muscle called the palmaris longus.
This muscle was essential for arboreal primates, such as lemurs and monkeys, to help them move from branch to branch. As humans and ground-dwelling apes like gorillas no longer rely on this muscle or tendon, both species have gradually lost this function.
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However, evolution moves slowly, so nearly 90% of humans still have this vestigial trait, passed down from our primate ancestors. To see if you have this tendon, place your forearm on a table with your palm facing up. Touch your pinky finger to your thumb and slightly lift your hand off the surface. If you see a raised band in the middle of your wrist, you have the tendon connected to the palmaris longus.
