1. The Heart

2. Superior vena cava inferior vena cava

3. Superior vena cava inferior vena cava Right atrium Tricuspid valve

4. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle

5. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery

6. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery

7. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery LUNGS OXYGENATE THE BLOOD

8. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery

9. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Pulmonary vein

10. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle

11. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve

12. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve

13. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Left ventricle Aorta Septum Mitral valve Bicuspid valve Aortic valve

14. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve

15. atrioventricular valve atrioventricular valve semilunar valve semilunar valve

16. Prosthetic Valves

17. The Heart

18. The Heartbeat

19. Atrioventricular node Ventricles Atria Body/Lungs Atrioventricular Sinoatrial node Atria Ventricles Ventricles Semilunar SYSTOLE DIASTOLE The Heartbeat

20. Blood Pressure: Measure of force of blood in arterial wall Normal blood pressure Sphygmomanometer The Heartbeat: Blood Pressure SYSTOLIC pressure DIASTOLIC pressure 120 80

22. Heart disorders Ventricular fibrillation: Uncoordinated contraction of ventricles. This form of severe arrhythmia can be fatal, and is commonly identified in cardiac arrest patients.

23. Heart disorders Heart murmurs: The heart makes extra sounds due to narrowing or leaking valves, or abnormal passages for blood flowing into or near the heart.

24. Heart disorders Hypertension: High blood pressure ( 140/90 or higher ). Prolonged high blood pressure damages the heart and blood vessels . Heart must pump harder, and over time the heart muscles expand , causing them to weaken . They may also thicken . Artery walls may tear and speed up atherosclerosis due to vessel injury.

25. Heart disorders Congenital heart defect: Defect of the structure of the heart and vessels , present at birth . Example: A septal defect is a hole in the septum , which allows oxygenated and deoxygenated blood to mix. 9 out of 1000 people are born with congenital heart defects.