The Heart Study G Word Scramble
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| Question | Answer |
| The heart's pointed inferior portion is the | apex |
| The layer of the heart wall that pumps blood is the | myocardium |
| The heartbeat is initiated by electrical impulses from the | sinoatrial node |
| Lack of blood to a tissue due to blocked arteries is called | ischemia |
| Pain caused lack of blood to heart muscle is called | angina |
| Receives blood low in oxygen from the body | Right atrium |
| Receives blood high in oxygen from the lungs | Left atrium |
| Sends blood low in oxygen to the lungs | Right ventricle |
| Sends blood high in oxygen to the body | Left ventricle |
| Which structural characteristic promotes rapid transfer of electrical signals between cardiac muscle cells? | intercalated disks between the cells |
| What separates the upper chambers of the heart from each other? | interatrial septum |
| Which term describes one complete sequence of heart contraction and relaxation? | cardiac cycle |
| Cardiac output is the product of which factors? | stroke volume and heart rate |
| Which medication reduces cardiac output by lowering sympathetic responses? | beta-adrenergic blocking agent |
| Which variation in heart rate can be due to changes in the rate and dept of breathing? | sinus arrhythmia |
Created by:
Jessica Venyke
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