1. Circulatory system

2. The circulatory system Has 3 functions: 1.Transport – moving things around the body in the bloodstream 2.Body temperature control – more blood near the skin cools the body quicker. That’s why your skin looks redder after exercise

3. The circulatory system 3. Protection – moving antibodies around the body to fight disease. Blood clotting seals clots.

5. Circulatory system Deoxygenated blood Has less oxygen – its found in all veins (except the pulmonary vein)

6. Circulatory system Oxygenated blood Has more oxygen – its found in all arteries (except the pulmonary artery)

7. The circulatory system Each time a blood cell goes right around your body, it goes through the heart twice – that’s double circulation. It happens because there are two circuits….

8. The circulatory system The systemic circuit is the main circuit and it carries: oxygenated blood around the body in the arteries Deoxygenated blood back to the heart along the veins – this then gets reoxygenated in the pulmonary circuit

9. The circulatory system The other circuit is: The pulmonary circuit It includes the heart and lungs. It carries: Deoxygenated blood from the heart to the lungs to oxygenated. The blood then goes back to the heart to be pumped around the systemic system