Across
- 2. inner lining of the heart
- 4. the pericardial cavity contains this
- 6. about the size of the heart
- 7. sphygm/o
- 9. singular term for the 2 upper chambers
- 10. how oxygen poor blood enters the heart
- 12. there are this many types of blood vessels
- 13. plural of septum
- 14. The innermost layer of cells in arteries
- 15. These are only one cell in thickness
Down
- 1. this means wall
- 3. This valve has 3 cusps
- 5. is the thickest of all 4 heart chambers
- 8. how oxygen is brought back to the heart
- 11. This shuts to prevent aortic blood returning