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gross disruption of cell form and structure, chemical changes, DNA breaks up, proteins coagulate
cells die without attempting cell division, formerly called interphase death, or programed cell death
relatively small doses can cause ______, less than whats required to produce apoptosis in slowly dividing or nondividing cells
failure of cell to start dividing on time, may resume normal fuction after its 'late start'
interference of function
permanant or temporary impairment of function other than division, may occur as a result of exposure to ionizing radiation, repair enzymes may fix, and cell can recover and continue function
radiation amount causing severe depletion of bone marrow, taking longer than a few weeks to repopulate
greater than 10 GY
radiation amount which can cause a permanent decrease in stem cells which create blood
.25 or 25 rads
amount that can depress the amount of lymphoctyes in blood, which can impair immune system
upon exposure of radiation, the initial response causes an INCREASE in these cells, then with increased exposure they rapidly decrease in number, and then more slowly. Takes about 2 months to fully repopulate
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