Across
- 2. Blood vessels that carry blood away from the heart.
- 4. Outer lining covering the heart.
- 6. Blood vessels that carry blood back to the heart.
- 12. Consist of the tricuspid and mitral valves, which lie between the right atrium and the right ventricle and the left atrium and left ventricle, respectively.
- 13. Production of new _____ _____ takes place in bone marrow.
- 14. Largest veins in the body.
- 17. Middle, thick, Muscular layer of the heart.
- 20. Microscopic blood vessels that connect arterioles with venules.
- 21. White blood cells that combat infection and respond to inflammation.
- 22. Red blood cells that carry oxygen
Down
- 1. Pulmonary and aortic valves located between the right ventricle and the pulmonary artery and between the left ventricle and aorta, respectively.
- 3. Tubelike structures that carry blood throughout the body.
- 5. Largest artery in the body, which originates at the left ventricle, briefly ascends as the arch of the aorta, then descends through the thorax and abdomen
- 7. Inner lining of the heart.
- 8. One of the formed elements in the blood that is responsible for aiding in the clotting process
- 9. Two-layer sac surrounding the heart, consisting of an external fibrous and an internal serous layer.
- 10. Clear, watery fluid portion of the blood that remains after a clot has formed.
- 11. Clear, straw-colored liquid portion of the blood in which cells are suspended.
- 15. Smallest veins.
- 16. Smallest arteries.
- 18. Muscular cone-shaped organ the size of a fist, located behind and slightly to the left of the sternum and between the lungs.
- 19. Fluid circulated though the heart, arteries, capillaries, and veins.