Obviously our muscles contracting allows movement, but how do they contract? Do cells in the muscle get pulled closer by a chemical process or something?
In: Biology
Not a biologist, but I’m pretty sure I remember that striated muscles (the ones you control) are made of something called a sliding-filament model. Thing of it like pages of two books being overlapped. They can only pull so much, but this process is repeated many times, so we can move more. People can work these muscles to either make the muscles longer for more stretching (like doing the splits) or to contract more aggressively (explosive power like a pull-up).
Muscles are connected to bones by something called tendons, close to the joints where bones are connected to each other by ligaments. When the muscle contracts, the tendon gets pulled, which pulls the bone, moving something like a limb.
idk i learned this a long time ago
Latest Answers