Circulatory System Key Terms

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Across
  1. 3. a cell that makes antibodies to mark and destroy invading pathogens
  2. 6. a red blood cell that transports oxygen and carbon dioxide to and from body tissues
  3. 10. related to the heart and blood vessels
  4. 12. tissue death in the heart muscle resulting from an occluded (obstructed) coronary artery; heart attack
  5. 13. veins that have become abnormally dilated, due to interference with venous drainage or weakness of their walls
  6. 14. vessels in the brain
  7. 15. a condition of low blood pressure
  8. 17. a blood clot that forms within a blood vessel and does not travel through the blood
  9. 18. abnormal heart rhythm
  10. 20. of an antigen found on the surface of the red blood cell
  11. 24. the fluid and its suspended formed elements that are circulated through the heart, arteries, capillaries, and veins
  12. 25. blood disorder; the shape of the red blood cell is a sickle shape,which makes the red blood cells clump together
  13. 27. abnormal sound heard during auscultation of the heart, such as a whooshing sound created by a valve not completely closing
  14. 29. sites locations to measure the number of times the heart beats per minute
  15. 31. blood vessel that moves blood from body tissues toward the heart
  16. 32. a layer of cardiac muscle that makes up the middle of the heart
  17. 33. four chambers, two upper (atria) and two lower (ventricles) through which blood flows through the heart
  18. 35. a mass (most commonly a blood clot) that travels through the blood and can become lodged in a blood vessel and obstruct blood flow
Down
  1. 1. flaps of tissue located between the heart chambers which allow the blood to flow only in one direction
  2. 2. vessels: vessels that convey blood; includes arteries, arterioles, capillaries,venules, and veins
  3. 4. a yellowish liquid containing mostly water, which carries nutrients, hormones, and waste for other body systems
  4. 5. disease resulting from reduced blood flow from the heart; characterized by weakness, breathlessness, abdominal discomfort, and edema in the lower extremities.
  5. 7. a cell fragment that helps form blood clots to repair injured blood vessels
  6. 8. a white blood cell that is involved in fighting infection
  7. 9. muscle contractions occurring due to electrical conduction
  8. 11. Accident (CVA): complete or partial loss of blood flow to brain tissue caused by blood vessel spasms, intracranial bleeding, and/or obstruction of the
  9. 16. a major blood vessel that moves blood away from the heart out to the body
  10. 19. fibrous sac that encloses the heart
  11. 21. a condition in which the arteries of the heart are narrowed, affecting the supply of oxygen and nutrients to heart muscle
  12. 22. a blood disorder caused by changes in a gene on the X chromosome; is characterized by the inability of the blood to clot
  13. 23. microscopic blood vessel that connects arterioles with venules
  14. 24. inherited from one’s parents and determined by the presence or
  15. 26. antigen found in red blood cells
  16. 28. the innermost layer that lines the four chambers (two atria and two ventricles) and covers the valves of the heart
  17. 30. blockage of the arteries, usually in the legs
  18. 34. a condition of high blood pressure