Cardiovascular System What is blood composed of? What are the different blood types? Draw a picture of the heart and label all the structures. What is the order that blood flows through the heart? Big Idea: Cardiovascular System What is the cardiac cycle and how does that relate to blood pressure and cardiac physiology? How is the cardiac cycle regulated? What are the 3 types of blood vessels? How is our blood pressure effected by our blood vessels?How do nutrients get moved from the blood to our body tissues?