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Chapter four effects
What are the two classification types of radiation effects?
following the latent period, effects that are seen within minutes, days, or weeks, are termed:
Which type of effects are associated with large amounts of radiation absorbed in a short period of time (nuclear accident or atomic bomb)
a short term affects that includes nausea, vomitting, diarrhea, loss of hair, and hemorrhage
acute radiation syndrome (ARS)
are short-term affects applicable to dentistry?
effects that appear after years, decades, or generations are termed:
affects associated with small amounts of radiation absorbed repeatedly over a long period of time
repeated low levels of radition exposure are linked to what 3 conditions?
induction of cancer
What are 2 classifications that all cells in the body can be classified as?
somatic or genetic
all cells in the body except reproductive cells
the reproductive cells in the body
affects that are seen in the person irradiated and are not passed down to future generations
What are 3 major somatic effects of radiation exposure?
induction of cancer, leukemia, and cataracts
affects that are not seen in the person irradiated, but passed on to future generations
true or false. genetic damage can be repaired
FALSE, it CANNOT be repaired
What components of the cell may be affected by ionizing rdiation?
Which is more sensitive to radiation, the cell nucleus, or cytoplasm?
Damage to the nucleus affects the chromosomes containing_______ and results in disruption of_______ ______, which in turn may lead to disruption of cell_______ or cell_________
a cell that is sensitive to a radiation
a cell that is resistant to radiation
The response of a cell to radiation exposure is determined by what 3 things?
cell division is associated with:
cells that divide frequently or undergo many divisions over time are______ sensative to radiation
maturing of cells is associated with:
cells that are immature or are not highly specialized are______sensative to radiation
metabolism of cells is associated with:
cells that have a higher metabolism are ___ sensative to radiation
What are 3 types of cells that are radiosensitive?
immature reproductive cells
young bone cells
what is the cell that is most sensitive to radiation?
the small lymphocyte
What are 3 types of cells that are radioresistant?
true or false. tissues and organs also vary in their sensitivity to radiation
What are 4 examples of radiosensitive organs?
What are 3 example of radioresistant tissues?
an organ that if damaged diminishes the quality of a person's life
What are 4 examples of critical organs exposed during radiographic procedures in the head and neck region?
lens of eye