Most muscles are connected to bones.
Muscles pull on the joints, allowing us to move.

Muscles are connected to bones by tendons.

Tendons attach muscles to bones.
Tendons help to move the bones.
Tendons allow the muscles to pull on bones.

The muscular system consists of all the muscles in the body.
There are over six hundred skeletal muscles in the body.

There are three types of muscles: cardiac, smooth, and skeletal.
Muscle action can be voluntary or involuntary.


What are the main functions of the muscular system?

The main function of the muscular system is movement.
Muscles produce force and cause motion.


All movement in the body is the result of muscle contraction.
How do muscles move bones?
Muscles move the bones by contracting and relaxing.

Muscle – Know your body
Source | MagicBox Animation

How your muscular system works
Lesson by Emma Bryce
Directed by Viviane Leezer
Source | TED-Ed