Circulatory System

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Across
  1. 3. white blood cell that is a part of the immune system, defending against pathogens and infections
  2. 4. carries deoxygenated blood from the heart to the lungs
  3. 9. chamber that brings deoxygenated blood from the upper body back to the heart
  4. 10. blood vessels that are thick-walled and carry oxygenated blood (except in the lungs) away from the heart, designed to withstand high pressure from the heart contractions due to their close-proximity to the heart
  5. 11. “tunica” — middle layer of blood vessel that is comprised of smooth muscle tissue that dilates and contracts blood vessels
  6. 13. lines chambers and valves of the heart to divide cardiac muscles from the bloodstream
  7. 14. largest artery in the body that carries oxygenated blood from the heart to the rest of the body
  8. 15. blood vessel that exchanges oxygen, waste, and nutrients between the bloodstream and the body’s tissues
  9. 16. outer protective layer of heart composed of adipose and simple squamous epithelial tissue
  10. 18. small cell fragment involved in blood clotting (hemostasis) to prevent excessive bleeding.
  11. 21. water-based extracellular matrix that contains blood cells, proteins, and hormones
  12. 22. veins, arteries, and capillaries; an organic network of tunnels that carries blood throughout the body
  13. 25. chamber that deoxygenated blood from the lower body back to the heart
Down
  1. 1. is responsible for transporting nutrients and oxygen throughout the body and ridding the body of CO2
  2. 2. vein that carries oxygenated blood from the lungs back to the heart
  3. 5. number (word) of chambers in the heart
  4. 6. cardiac muscle cells that make up myocardium
  5. 7. red blood cells that carry oxygen and nutrients to the rest of the body via the protein hemoglobin
  6. 8. system of veins and capillaries that conveys blood from intestines, pancreas, gallbladder, and spleen to the LIVER to process nutrients
  7. 11. muscular tissue of the heart that pumps involuntarily
  8. 12. a diseased caused by mutations in hemoglobin, making blood cells hard and sticky and blocking blood flow
  9. 17. “tunica” — innermost layer of blood vessel that regulates blood pressure and declots blood
  10. 19. connective tissue that carries the oxygen, white blood cells, nutrients, and waste along the blood vessels
  11. 20. “tunica” — outermost layer of blood vessel that diffuses oxygen and nutrients into bloodstream and provides structure
  12. 23. blood vessel that carries deoxygenated blood (not pulmonary vein) back to the heart, thin-walled with valves to prevent backflow, replying on muscle movement to push blood
  13. 24. a muscular organ at the center of the circulatory system that pumps the blood throughout the network of veins of the body