Chap 20-21!

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Across
  1. 4. tissue found in the heart.
  2. 6. blood cells
  3. 8. of a nerve cell that responds to stimuli, or receives a nerve signal
  4. 13. found in blood that encourage clotting
  5. 15. number of chambers in the hearts of birds and mammals
  6. 16. number of chambers found in the heart of a fish
  7. 17. plaque in the coronary artery
  8. 19. of the circulation system where arteries carry deoxygenated blood away from the heart to the lungs.
  9. 21. to high altitudes results in an increase in RBC
  10. 23. muscle tissue mostly under conscious control, sometimes unconscious control
  11. 25. CIRCULATORY SYSTEM|Blood is contained within vessels and vessels make a complete circuit
  12. 26. and cells that form liners to organs or glands (two words, no spaces)
  13. 29. increase the ______ area to enable diffusion of gasses
  14. 30. a constant internal environment
  15. 34. system made up of the spinal cord and the brain
  16. 36. that encourages RBC to release more oxygen to tissues.
  17. 41. smallest organizational unit in organisms
  18. 42. of blood is made up of this. It contains salty water, and dissolved proteins
  19. 45. of tissues that perform specialized functions
  20. 47. tissue under unconscious control responsible for peristalsis in the digestive tract
  21. 49. left one recieves oxygenated blood from the lungs
  22. 50. cholesterol
  23. 51. number of chambers in the hearts of amphibians
  24. 52. potentials are perpetuated down this part of the neuron to signal the next nerve cell in the line
Down
  1. 1. up to four oxygen molecules, and does not like to let go of more than 2, sometimes 3 of them.
  2. 2. chamber the dispenses blood
  3. 3. sphincter cuts off the flow of blood to appendages to conserve heat for the heart and brain (the body's core) when it is cold
  4. 5. blood AWAY from the heart
  5. 7. portion of blood (90% saltwater)
  6. 9. of cells that share similar function
  7. 10. of the epithelial tissue lining the inside of the stomach; keeps acid from damaging the stomach lining
  8. 11. node that causes heart contractions
  9. 12. organism ultimately depend on this for nutrient delivery
  10. 14. blood TOWARD the heart
  11. 18. deposits in the plaque causing hardening
  12. 19. fragments that slow blood loss and promote clotting
  13. 20. blood cells
  14. 22. cartillage, blood, bone (two words, no spaces)
  15. 24. temperature regulation and protection are all ______ of the circulatory system
  16. 27. of the circulatory system where veins carry deoxygenated blood back to the heart from the body
  17. 28. in connective tissue that produce collagen & elastin
  18. 30. in red blood cells that carries oxygen
  19. 31. that generate body heat internally
  20. 32. resembling a cluster of grapes
  21. 33. cell responsible for transmitting neruological impulses
  22. 35. that results when the lymphatic system is not functioning properly
  23. 37. of organs that work together to accomplish phyiological tasks (two words, no spaces)
  24. 38. fluids and proteins, fighting illness, and retrieving nutrients, such as lipids, from the small intestine are functions of the ______ system
  25. 39. that get heat from their environment
  26. 40. porous vessles that bring blood close to tissues
  27. 43. chamber that receives blood
  28. 44. side of the heart that receives deoxygenated blood from the body
  29. 46. nerve cell is the housekeeping staff for neurons. These cells fight pathogens, and provide nutrients and oxygen for neurons
  30. 48. cholesterol that has fewer proteins and develops plaques