Chapter 20 and 21

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Across
  1. 4. Circuit of the circulation system where arteries carry deoxygenated blood away from the heart to the lungs
  2. 7. Group of tissues that perform specialized functions
  3. 9. Transport, temperature regulation and protection are all blank of the circulatory system
  4. 12. Blood is contained within vessels and vessels make a complete circuit
  5. 15. Heart chamber that receives blood
  6. 16. The smallest organizational unit in organisms
  7. 17. Action potentials are perpetuated down this part of the neuron to signal the next nerve cell in the line
  8. 20. Number of chambers in the hearts of birds and mammals
  9. 21. The number of chambers found in the heart of a fish
  10. 22. Nervous system made up of the spinal cord and the brain
  11. 24. Acclimation to high altitudes results in an increase in RBC
  12. 25. This nerve cell is the housekeeping staff for neurons. These cells fight pathogens, and provide nutrients and oxygen for neurons
  13. 26. Group of cells that share similar function
  14. 27. Circuit of the circulatory system where veins carry deoxygenated blood back to the heart from the body
  15. 28. All organism ultimately depend on this for nutrient delivery
  16. 29. The side of the heart that receives deoxygenated blood front the body
  17. 30. Striated muscle tissue mostly under conscious control, sometimes unconscious control
Down
  1. 1. Bad cholesterol that has fewer proteins and develops plaques
  2. 2. Heart chamber that dispenses blood
  3. 3. Nerve cell responsible for transmitting neurological impulses
  4. 4. 55% of blood is made up of this. It contains salty water, and dissolved proteins
  5. 5. The node that causes heart contractions
  6. 6. Lungs increase the balk area to enable diffusion of gasses
  7. 8. Structure resembling a cluster of grapes
  8. 10. Cells in connective tissue that produce collagen and elastin
  9. 11. The left one receives oxygenated blood from the lungs
  10. 12. Tiny porpoise vessels that bring blood close to tissues
  11. 13. Acid that encourages RBC to release more oxygen to tissues
  12. 14. Recycling fluids and proteins, fighting illness, and retrieving nutrients, such as lipids, from the small intestine are functions of the blank system
  13. 18. Muscle tissue found in the heart
  14. 19. Good cholesterol
  15. 23. Swelling that results when the lymphatic system is not functioning properly
  16. 27. Muscle tissue under unconscious control responsible for peristalsis in digestive tract