Hospital Knowledge

What is an IV?
What is the heart?
What is an X-ray?
What are the lungs?
What is a thermometer?
What is the nose?
What is a tool that is used to listen to the inside of your body, such as your heartbeat?
What is a stethoscope?What are vessels that carry blood throughout the body? They look like blue lines
What are veins?
What is the tool that squeezes your arm, has a velcro strap, and measures your blood pressure?

What is in the lower back?