The Circulatory and Respiratory Systems

If you place your hand on your chest, you should be able to feel your heart beating. You can also feel your chest rise and fall with each breath. These are physical indications of your circulatory and respiratory systems. The circulatory and respiratory systems work together in a variety of ways to allow the cells in your body to obtain the nutrients and oxygen that are needed for you to stay alive. In this topic, you will learn more about both of these systems.

Essential Questions

• What are the structures of the circulatory system?
• What are the structures of the respiratory system?
• How do the circulatory system and respiratory system work together to supply the body with oxygen and rid it of carbon dioxide and other wastes?
• What are some common health issues that affect the circulatory system and respiratory system?