Chapter 3: Radiation Biology

Edit Answers
1234567891011121314151617181920212223242526272829303132
Across
  1. 3. radiation effects seen in the person exposed, not passed to offspring
  2. 5. effects where probability increases with dose, no threshold, examples include cancer and mutations
  3. 6. graph showing the relationship between radiation dose and tissue damage
  4. 7. radiation effects passed to future generations through reproductive cells
  5. 8. SI unit measuring exposure in air
  6. 17. one of the most sensitive organs to radiation
  7. 21. cell damage caused by toxins formed when water molecules are ionized
  8. 23. cells less likely to be damaged by radiation exposure
  9. 25. prefix meaning one thousandth, used to express small dental doses
  10. 27. effects that have a threshold and severity increases with dose, such as erythema or cataracts
  11. 28. uncharged atom or molecule with an unpaired electron formed when x-rays ionize water
  12. 31. occur after large doses over a short time causing nausea, vomiting, and hair loss
Down
  1. 1. probability of harm from exposure to ionizing radiation
  2. 2. rate of cell division determining radiation sensitivity
  3. 4. level of cell specialization affecting sensitivity to radiation
  4. 9. comparison showing diagnostic benefits outweigh minimal radiation risks
  5. 10. traditional unit measuring ionization in air
  6. 11. radiation-sensitive tissue responsible for blood cell production
  7. 12. process where x-rays strike tissue and eject electrons causing chemical changes in cells
  8. 13. model indicating any amount of radiation causes some biologic damage
  9. 14. SI unit for absorbed dose equal to 100 rads
  10. 15. cells that are easily damaged by radiation
  11. 16. settings such as kVp and mA that affect patient dose
  12. 18. faster film reduces patient radiation dose
  13. 19. estimated 3 in 1 million chance from dental x-rays
  14. 20. higher metabolism increases a cell’s sensitivity to radiation
  15. 22. limits size and shape of x-ray beam reducing exposure
  16. 24. radiation injury occurs when x-rays directly hit critical areas in a cell
  17. 26. occur after small doses absorbed repeatedly over time causing cancer or genetic defects
  18. 29. SI unit for dose equivalent equal to 100 rems
  19. 30. traditional unit comparing biologic effects of different radiation types
  20. 32. traditional unit measuring radiation absorbed dose