Tissue response to radiation Flashcards
How does functional and structural damage occur
When stem cells are unable to regenerate after radiation
is damage shown in organs at the same time after irradiation
no, different tissues have different sensitivities, for example, damage is seen within the intestine within a week, whereas damage is seen in the lung within 3 months
Effects of radiation that appear at a whole body level
from a result of damage to
cells to tissues to organs to systems
what is necessary for radiation damage to be expressed
cell division
what does the time that the injury is expressed in an organ depends on
the turnover time of the critical target cells, not only when they divide but how often
What is a critical target cell
these are cells that can divide and regenerate after radiation, these are stem cells