Biology Chapter 30, Sections 1-4 Vocab

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Across
  1. 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.
  2. 7. In cases of severe blockage, a blood clot could close up the artery, leading to this.
  3. 8. this close contact is accomplished by millions of microscopic blood vessels.
  4. 11. flaps of tissue in the heart called this prevent blood from flowing backward.
  5. 14. the clotting process depends on small fragments of blood cells called this that originate in the bone marrow.
  6. 16. blood flows from the heart to the capillaries through a system of thick-walled blood vessels
  7. 18. carries oxygen-rich blood from the heart to the rest of the body and oxygen-depleted blood back to the heart.
  8. 20. is a type of connective tissue made up of cells and liquid.
  9. 22. blood returns from the capillaries to the heart through vessels
  10. 23. have nuclei and mitochondria and are responsible for fighting infection and preventing the growth of cancer.
  11. 24. the two lower chambers are called this, which pump blood out of the heart.
Down
  1. 1. carry oxygen from the lungs to all the tissues of the body.
  2. 3. fifty-five percent of the volume of blood is a solution called this.
  3. 4. oxygen-rich blood flows through the branching arteries to the capillaries.
  4. 5. narrowing of the arteries, a condition called this, results from plaque building up inside the artery wall.
  5. 6. carries oxygen-depleted blood from the heart to the lungs and oxygen-rich blood back to the heart.
  6. 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.
  7. 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.
  8. 12. a more advanced stage of plaque buildup, called this, occurs when the deposits on the artery wall harden.
  9. 13. a specific region of your heart muscle, known as this, sets the rate at which your heart contracts.
  10. 15. the two upper chambers, which receive blood returning to the heart, are called
  11. 17. blood is pumped through the body by this organ, a multi-chambered, muscular organ.
  12. 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.
  13. 21. once inside the lymphatic vessels, this collected fluid is called