Theories of Radiation Injury Flashcards
1
Q
What are the two theories used to describe how radiation damages biologic tissues?
A
- The direct theory
2. The indirect theory
2
Q
What is the direct theory?
A
Suggests that cell damage results when ionizing radiation directly hits critical areas, or targets, within the cell.
3
Q
What is the indirect theory?
A
Suggests that x-ray photons are absorbed within the cell and cause the formation of toxins, which, in turn, damage the cell.