1. Circulatory System The Circulatory system serves 3 main functions:
Delivers needed substances to cells
Carries wastes away from cells
Helps regulate body temperature
It also contains blood cells that fight disease

2. Coronary Circulatory Coronary means “heart”
Flow of blood to and from the tissues of the heart

3. Coronary Circulatory

4. Pulmonary Circulation
Pulmonary means “lungs”
Flow of blood thru the heart to the lungs and back to the heart

5. Systemic Circulation
Oxygen-rich blood flows to all organs and body tissues except heart and lungs
O2 poor blood to heart

6. Blood Flow
Blood high in CO2 and low in O2 returns from the body to the heart
1st it enters the right atrium through the superior and inferior vena cava

7. Next, the Right Atrium contracts forcing blood into the Right Ventricle

8. The Right ventricle contracts and blood leaves the heart through the pulmonary artery to the lungs.

9. Oxygen rich blood travels from the lungs thru the pulmonary vein into the left atrium

10. Left atrium contracts forcing blood into left ventricle

11. Oxygen rich blood flows to all parts of your body through the Aorta
=BEWjOCVEN7M

12. Veins and Arteries
Pulmonary arteries carry oxygen poor blood from the heart to the lungs
Pulmonary veins carry oxygen rich blood from the lungs to the heart
Veins: blood vessels carrying blood back to the heart
Arteries: Blood vessels that carry blood away from the heart