Which body organs are most sensitive to radiation exposure?

The organs that are most sensitive to radiation exposure include the bone marrow, thyroid, and skin due to their high rates of cellular division and turnover.

Bone marrow is particularly affected because it is responsible for producing blood cells, which are rapidly dividing and therefore more susceptible to damage from radiation. Exposure can lead to a decrease in blood cell production, resulting in some serious health issues like anemia and immune system deficiencies.

The thyroid gland is sensitive to radiation, as it can absorb radioactive iodine, leading to an increased risk of thyroid cancer and other disorders. Its role in regulating metabolism and growth further underscores the importance of protecting this gland from radiation exposure.

Skin, being the outermost layer of the body, is also exposed directly to radiation, making it vulnerable to damage. High doses of radiation can cause skin burns, radiation dermatitis, and increase the risk of skin cancers.

In summary, these organs’ vulnerabilities stem from their high cellular turnover rates and critical physiological roles, making them the most sensitive to radiation effects among the options presented.