Hold your hand in front of you, palm up and fingers splayed. Now bend your fingers at their first joint past the knuckles. Your hand should look a bit like a spider on its back, curling up its legs — ...
Factinate on MSN
There's a muscle in your body that scientists say serves no purpose, but every human still has it
Run a finger down the center of the forearm, curl the fingers, and flex the wrist. For many people, a thin cord jumps into view, tight as a guitar string under the skin. It feels deliberate, almost ...
The muscular system works to control the movement of our body and internal organs. Muscle tissue contains something called muscle fibers. Muscle fibers consist of a single muscle cell. They help to ...
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