Human bones and muscles Crossword

What is the heaviest bone in the body?
Which bones protect your lungs?
Which bone connects your upper body to the lower body?
Which is the smallest bone in the body?
What is the long, thin bone in the lower leg?
What is the name for the knee cap?
What is the name of the 33 individual and interlocking bones in your spinal column?
What is the largest bone in the body?
What is a muscle that works without you even thinking about it?
What is the largest muscle in the body?
In what part of the body is the smallest muscle?
What attaches muscles to bones?
What is the strongest muscle in the jaw?
What is the muscle that helps move your shoulders?
What are the muscles that are on top of your rib cage?