Why is an absorbed radiation dose of 10 grays, absorbed over 1 day (i.e. acutely) more damaging to living tissue than the same dose received as 1000 exposures of 0.01 grays over 10 years (i.e. chronically)?

belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:17.2| Question number:43

waelhammad

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2022-10-21

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Why is an absorbed radiation dose of 10 grays, absorbed over 1 day (i.e. acutely) more damaging to living tissue than the same dose received as 1000 exposures of 0.01 grays over 10 years (i.e. chronically)?

0.01 grays is below the threshold dose that is known to damage cells.
Rapidly dividing cells are more susceptible to damage from acute doses of radiation.
Healthy cells can recover from low levels of radiation if the whole body is not exposed
Cells can repair radiation damage if given time between exposures to do so

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waelhammad

2022-10-21

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D: There are repair mechanisms within a cell that can repair radiation damage, given time and damage that is not too severe.

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Why is an absorbed radiation dose of 10 grays, absorbed over 1 day (i.e. acutely) more damaging to living tissue than the same dose received as 1000 exposures of 0.01 grays over 10 years (i.e. chronically)?

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