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HBSL14
The Pumping Heart
| Question | Answer |
|---|---|
| Heart: Sends blood to the lungs. | pulmonary |
| Heart: Sends blood to the rest of the body. | systemic |
| Double walled sac that surrounds the heart. | pericardium |
| Top two chambers. | atria |
| Bottom two chambers. | ventricles |
| Controls beating and rhythm of heart. | sinoatrial node |
| Any heart sound other than the normal "lub-dub". | heart murmur |
| Filled with waste products. | venae cavae |
| Major artery. | aorta |
| Discovered closed circulatory system in humans. | Dr. William Harvey |
| Body needs _____ liters blood to stay alive. | five |
| Carry blood towards the heart. | vein |
| Carry blood away from the heart. | artery |
| Connect veins and arteries--carries blood. | capillaries |
| Number of chambers in the heart. | four |