Skeletal system disorders, muscular intro

The disorder with swollen ,stiff joints is called...

The disease where the bones become weak and has less calcium.

The muscles that we cannot control are called..

If there is an injury to the ligament and the joint is stretched too far. What is that injury called?

What is the disorder of broken bones called?

An example of voluntary muscle

An example of involuntary muscle

The muscles that we can control are called..