Circulatory and Respiratory System Study Guide

*Test _____________________

-         Review notes, diagrams, and activities

-         Review worksheets (classroom and computer)

-         Know the following terms:  artery, vein, capillary, atrium, ventricle, breathing, respiratory system, windpipe, lungs, diaphragm, cartilage, inhale, exhale, breathing rate

1.     What is circulation?  The movement of blood through your body

2.     How many chambers does the human heart have?  What are their names? Four chambers:  right atrium, right ventricle, left atrium, left ventricle

3.     What are the three kinds of blood vessels?  What are their jobs?  Artery-carries blood away from the heart, vein-carries blood to the heart, capillary-connects an artery to a vein.

4.     What is a pulse? The throbbing caused by blood rushing into the arteries each time the ventricles contract.

5.     What is plasma and what is its job?  Carries nutrients to cells and picks up wastes such as carbon dioxide and delivers them to organs such as the lungs to be excreted

6.     What is the job of red blood cells?  Carry oxygen from the lungs to body cells. 

7.     What is the job of white blood cells?  Blood cells that fight disease-causing germs

8.     What are platelets and what is their job?  Parts of cells that can stick together to help the blood clot, or thicken.

9.     How does blood flow through the heart?  Right atrium, right ventricle, lungs, left atrium, left ventricle, body, then right atrium again.

10. What happens when you breathe?  Nose warms and moistens air, small hairs in the nose trap dust, clean air moves from the nose to the back of the throat, air goes into the windpipe, air reaches the lungs

11. What happens in your body when you inhale?  Rib muscles tighten, diaphragm moves down, lungs fill with air

12. What happens in your body when you exhale?  Rib muscles relax, diaphragm moves up, forces air out of the lungs

13. Why is exercise good for you?  Strengthens heart and lungs