What is an example of a radioresistant tissue?

Muscle tissue is considered an example of radioresistant tissue because it has a lower growth rate and a higher capacity to repair DNA damage compared to other types of tissues that are more sensitive to radiation. This radioresistance is attributed to the relatively stable and differentiated state of muscle cells, which are less actively dividing than other tissues such as lymphoid tissue, bone marrow, or immature reproductive cells.

Lymphoid tissue, for instance, is highly sensitive to radiation due to the rapid proliferation of lymphocytes, which makes it more susceptible to the damaging effects of radiation. Similarly, bone marrow is also sensitive since it is a major site of cell division and production of blood cells. Immature reproductive cells, which are involved in meiosis and rapid division, are also sensitive to radiation damage.

In contrast, the stable nature of muscle tissue contributes to its ability to withstand radiation exposure better than these other tissues, making it an ideal example of radioresistant tissue.