1. Life saving technology that have arisen as a result of improved understanding of the circulatory system (Artificial heart valves, ECG and artificial blood) By Khrisitienne

3. Replacing the valves in the heart requires open heart surgery.

4. There are two types of artificial heart valves: mechanical valves and biological valves.

5. Mechanical heart valves are also called prosthetic heart valves. They are designed to replicate the function of normal heart valves. Modern mechanical valves can last indefinitely but they require lifelong treatment with anticoagulants, such as warfarin.

7. The electrocardiograph records the electrical activity of the heart muscle and displays this data as a trace on a screen or on paper. This data is then interpreted by a medical practitioner.

9. While artificial blood does not perform all the functions of real blood, it carries out the necessary task of bringing oxygen to the cells.

10. The two most common types of artificial blood are HBOCs (hemoglobin-based oxygen carriers) and PFCs (perflourocarbons).