Myomere

Myomeres are kind of like the muscles in our body, but they're for fishes! Fishes have these little, stripey sections called myomeres that run along their body from their head to their tail. They're what help the fish move and swim.

Imagine if you wanted to move your arm up and down. You would use your muscles to contract or tighten up, and that would make your arm move. Myomeres work the same way for fishes, but instead of just one muscle controlling a whole part of the body, the myomeres are separated into lots of little sections that all work together to make the fish swim.

So if a fish wants to swim faster, its myomeres will contract faster and more rhythmically to help it move through the water. And if a fish wants to slow down or stop, then its myomeres will relax and slow down too.

Overall, myomeres are super important for fishes, because they're what help them swim and move around in their environment!