Across
- 2. however, if a person has a blood pressure of 140/90 or higher for an extended period of time, that person is said to have this, or high blood pressure.
- 7. In cases of severe blockage, a blood clot could close up the artery, leading to this.
- 8. this close contact is accomplished by millions of microscopic blood vessels.
- 11. flaps of tissue in the heart called this prevent blood from flowing backward.
- 14. the clotting process depends on small fragments of blood cells called this that originate in the bone marrow.
- 16. blood flows from the heart to the capillaries through a system of thick-walled blood vessels
- 18. carries oxygen-rich blood from the heart to the rest of the body and oxygen-depleted blood back to the heart.
- 20. is a type of connective tissue made up of cells and liquid.
- 22. blood returns from the capillaries to the heart through vessels
- 23. have nuclei and mitochondria and are responsible for fighting infection and preventing the growth of cancer.
- 24. the two lower chambers are called this, which pump blood out of the heart.
Down
- 1. carry oxygen from the lungs to all the tissues of the body.
- 3. fifty-five percent of the volume of blood is a solution called this.
- 4. oxygen-rich blood flows through the branching arteries to the capillaries.
- 5. narrowing of the arteries, a condition called this, results from plaque building up inside the artery wall.
- 6. carries oxygen-depleted blood from the heart to the lungs and oxygen-rich blood back to the heart.
- 9. if you could inspect the arteries of an older person, however, you might find a patchwork of cholesterol, calcium, and fat deposits, called this, adhering to the interior walls.
- 10. while a teenager may not feel any symptoms of the disease, significant buildup of plaque can ultimately lead to this, illness of the heart and/or blood vessels.
- 12. a more advanced stage of plaque buildup, called this, occurs when the deposits on the artery wall harden.
- 13. a specific region of your heart muscle, known as this, sets the rate at which your heart contracts.
- 15. the two upper chambers, which receive blood returning to the heart, are called
- 17. blood is pumped through the body by this organ, a multi-chambered, muscular organ.
- 19. If a blood clot forms in an artery going to the brain, it can cause this, damage to brain tissue resulting from blocked blood flow.
- 21. once inside the lymphatic vessels, this collected fluid is called