the radiosensitive cell populations , such as resting lymphocytes from thymus , spleen , lymph node and blood , have much smaller nuclei ( vn ( nuclear volume ) approximately 20 to 70 microns3 ) compared to radioresistant g0 cells from non-lymphoid tissues ( liver , kidney , brain , heart ; vn approximately 75 to 2700 microns3 ) .
C0007610
nuclei
C0007634
cells