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Name
Class
Date
Chapter 33 Vocabulary Review
Across
Down
1. the sinoatrial node of the heart
2. an upper chamber of the heart
3. fluid and the small particles it contains
that leaves blood cells
4. the fluid portion of the blood
5. the circulation pathway that sends blood
from the heart to the lungs and back to the
heart
6. a blood vessel that returns blood from the
body to the heart
7. a structure that keeps blood moving
through the heart in one direction
8. a muscle layer in the heart
9. a lower chamber of the heart
10. the build-up of fatty deposits in
artery walls
10. a blood vessel that carries blood from the
heart to body tissues
14. the smallest blood vessel
11. Erythrocytes, or
cells, transport oxygen.
15. Leukocytes, or
blood
cells, guard against infection.
16. the protein in the blood that binds
oxygen
blood
12. the circulation that sends blood from the
heart to all the body except the lungs
13. a cell fragment that makes blood clotting
possible
For Questions 17–19, complete each statement by writing the correct word or words.
17. The throat is also called the
.
18. The windpipe is also called the
.
19. The vocal cords are in the
.
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