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Getting to the Heart of It!

DIRECTIONS: Use the Web page below to help you fill in the blanks of these sentences about the heart.

The Heart in Plain English at http://www.curiousheart.com/theheart1.htm

1. The heart is shaped like a __________.
   
   
   
2. Problems with the heart valves can create a heart sound called a __________.
   
   
   
3. The __________ is a wall that separates the left and right sides of the heart.
   
   
   
4. The small blood vessels in the lungs are called __________.
   
   
   
5. The top two chambers of the heart are the left and right __________.
   
   
   
6. __________ and __________ are very important in the conduction system of the heart.
   
   
   
7. The inner lining that covers the internal structures of the heart is the __________.
   
   
   
8. The __________ have very thin walls through which blood cells exchange carbon dioxide for fresh oxygen.
   
   
   
9. If the blood vessels were a highway system, the __________ would be an interstate!
   
   
   
10. The __________ valve separates the left atrium and the left ventricle.