make a joint
Depends which bones
When they contract
When muscles move, they produce body heat.
smooth muscles
The way the muscles are attached to the bones is what facilitates locomotion. The muscles contract which makes the bones move and creates locomotion.
Muscles contract and relax to pull/push
one muscle to contract and the other muscle to retract
muscles are attached to bones by tendons. they expand or contract depending on what you want to do
sarcomere's are the functional unit of a muscle which contract and make muscles shorter which then cause bones to move.
they allow for leverage so the muscles can contract
A skeletal muscle connects two bones together by the joint and when the muscle contracts it brings the two bones closer together. These skeletal muscles moves the bones.
Muscles and tendons move bones at the joints. You can not actually "move bones" on your own, rather you can only contract and relax certain muscles and tendons specifically told to listen to you.