| 1 | The heart can be safely opened and its valves repaired. | |
| 2 | And it isn' t cholesterol that causes clogs in your heart valves. | |
| 3 | His heart has divided into four chambers and its valves are beginning to form. | |
| 4 | Consists of four chambers with one-way doors (valves) between to direct the blood to flow in a specific direction. | |
| 5 | Rheumatic heart disease is caused by damage to the heart valves and heart muscle from the inflammation and scarring caused by rheumatic fever. |
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