Which is the command center of the body?

It allows you to bend your knees.

Which disorder caused by blood clotting or broken blood vessels?

Which of the following is not a function of the kidneys?

Which set of bones protect the lungs and the heart?

What do you need most when you are tired?

It is about the size of your fist and located in the middle of the chest cavity.

Which does not help your bones and muscles grow, develop and work well?

Which ailment is developed in response to prolonged exposure to tobacco smoke?

It filters the oxygen that enters the body.