The heart is a muscular organ that pumps blood around your circulatory system. The circulatory system is the heart and all the blood vessels in the body which carry cells and substances to all its ...

Look at diagram of blood flow through the heart - Figure 10.9 on page ... vessels listed in Table 1 and shown in Figure 5.3. Functional anatomy of circulatory and respiratory system is important.

Your heart first pumps blood to your lungs. Here, the blood picks up oxygen from the air that you have breathed in. The blood (carrying oxygen) then travels back to your heart. The heart gives the ...