Anonymous

Magic.

Anonymous

Nerves from the brain command the muscles contract and relax. The muscles are attached to ligaments, and the ligaments are attached to bones. So when the muscles contract, the bones are moved. If you want more details, take a look at these videos.

Anonymous

Muscles allow movement. There are also nerves that are connected to the brain and receive and carry messages to and from it, including those that signal for movement. This is a very basic answer, sorry!

Anonymous

Slowly. Effort.

Anonymous

are you an alien ????? please get me off of this planet, you can do what ever you want to me to get the answers you want

Anonymous

Electrical signals sent by the brain to muscles, cause the muscle fibers to flex in coordination with the specific signal sent.