Across
- 3. Another name for the left atrioventricular valve (between the left atrium & ventricle)
- 6. The right atrioventricular valve (between the right atrium & ventricle)
- 7. The type of circulation that eliminates carbon dioxide and oxygenates blood (lung pathway)
- 8. The inner layer of the heart wall
- 11. The blood leaves the heart through the coronary _____
- 13. The blood vessels that bring blood to the atria of the heart
- 14. The heart is a ______ pump
- 15. The middle layer of the heart wall, all muscle
- 17. The type of circulation that delivers blood to all body cells and carries away waste
- 19. The number of chambers the heart has
Down
- 1. The blood vessels that pump blood out of the heart
- 2. The thin upper chambers of the heart
- 4. The type of circulation through which the heart gets its blood; it comes before anything else in the body
- 5. The thick and powerful lower chambers of the heart
- 7. The loose-fitting sac that surrounds the heart
- 9. The semilunar valve between the left ventricle and the aorta
- 10. The sort of gates that allow one-way flow of blood; there are four
- 12. The semilunar valve between the right ventricle and the pulmonary artery
- 16. The shape of the heart
- 18. The heart's surface (outer layer of the three layers of the heart wall)