Before moving on ask yourself if you've met the Learning Targets for this week:

Describe the respiratory system and its functions Describe the circulatory system and its functions Describe the mechanics of breathing Summarize gas exchange in the lungs Describe the structure and function of the heart Contrast pulmonary and systemic circulation Explain the structure of arteries, veins, and capillaries, and how blood flows through the body Describe how blood pressure is regulated List the main components of blood Describe the functions of platelets and different types of blood cells

If not take the time to review the ones you are uncertain of, and let your teacher know if you need more help on any of these.