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Science Chapter 2
Blood and Heart
| Question | Answer |
|---|---|
| What is the healthy resting heart rate for a 10 year old ? | 90 beats per minute |
| Name the four chambers of the heart | two atria & two ventricles |
| What prevents blood from flowing in more than one direction in the heart? | valves |
| Which are the blood vessels that carry blood back to the heart? | veins |
| What are the blood vessels called that connect the artery and vein system? | capillaries |
| What does not contribute to high blood pressure? | too little salt in the diet |
| What makes a person at risk for a heart attack? | coronary heart disease |
| Which is not true of red blood cells? | They fight infection |
| What kind of cell is involved in clotting blood? | platelets |
| Which procedure is used when the coronary artery is completely blocked? | bypass surgery |
| What was first implanted in 1999 that offered a temporary solution to heart problems? | battery-powered artificial heart |
| What is the process called in which one person's blood is donated to another person? | blood transfusion |
| What amazing thing happened to the dried blood of St. Januarius? | At different times throughout the year, his blood becomes liquid. |
| What is anemia? | Red blood cells do not provide enough oxygen for the person to be healthy |
| What is hemophilia? | A person's blood does not clot properly. |
| What is leukemia? | Cancer of the blood |