1. My heart is a muscle and it pumps blood Like a big old black steam train My veins are the tracks And the city is my brain - The Cruel Sea (1993)

2. The Heart

3. Animation

4. Right atrium Right ventricle Left atrium Left ventricle 1 2 3 4

6. Superior vena cava Inferior vena cava Left pulmonary artery Left pulmonary vein Right pulmonary vein Aorta 1 2 3 4 5 6 7 Right pulmonary artery

8. Tricuspid valve Pulmonary valve Mitral valve Aortic valve 1 2 3 4

16. right atrium lungs pulmonary arteries mitral valve right ventricle tricuspid valve pulmonary veins left atrium aortic valve vena cava pulmonary valve left ventricle aorta

17. BODY The Mammalian Heart