Science Chapter 3: Human Body Systems

What are the air sacs where gas is exchanged called?

Where is the urine collected before passing from the body?

What are the blood vessels called that carry oxygen-rich blood away from the heart?

Where are your kidneys located?

What brings oxygen and nutrients to all cells of the body, and carries away wastes?

Where do small food particles travel from when they go into the blood?

Food travels from the mouth to the stomach through what? 

Saliva breaks down starch into what? 

How many chambers are in the human heart?

What is the central organ of the circulatory system?

What are the tiny blood vessels that connect arteries to veins?

What part of the body delivers oxygen and removes carbon dioxide? 

What churns food, then passes it to the small intestine?

What removes wastes and maintains healthy water levels in the body?