What muscles and skeleton do?
Muscles pull on bones to make us move. Muscles also help us breathe and pump blood. Bones provide a framework for the body, which gives shape to our bodies. Bones also protect organs and help store minerals.
The main types of muscles are:
* Skeletal muscles: These are the muscles that we can consciously control, such as the muscles in our arms and legs.
* Smooth muscles: These are the muscles that we cannot consciously control, such as the muscles in our stomach and blood vessels.
* Cardiac muscles: These are the muscles that make up our heart.
The main types of bones are:
* Long bones: These are the long, thin bones, such as the bones in our arms and legs.
* Short bones: These are the small, cube-shaped bones, such as the bones in our wrists and ankles.
* Flat bones: These are the flat, thin bones, such as the bones in our skull and ribs.
* Irregular bones: These are the bones that do not fit into any of the other categories, such as the vertebrae (the bones in our spine).