How many chambers does the human heart have?

What is the smallest bone in the human body?

What is the main function of the kidneys?

Which muscle is responsible for breathing?

What type of joint is found at the shoulder and hip?

How many vertebrae are in the human spine?

Which part of the brain is responsible for voluntary movement?

What is responsible for clotting blood?

What is the body’s largest internal organ?

Which part of the digestive system absorbs nutrients?