Which of the following organs is/are the most radiosensitive?

The gonads are considered to be the most radiosensitive organs in the body due to their role in reproduction and the nature of the cells they contain. The testes and ovaries have a high percentage of undifferentiated cells that are rapidly dividing, making them more susceptible to damage from radiation exposure. This high rate of cellular division increases the likelihood of radiation causing mutations or cell death.

Additionally, the reproductive cells (spermatogonia and oocytes) are vital for reproduction and can be affected by radiation in a way that can lead to genetic alterations, affecting future generations. Exposure to radiation can lead to significant effects such as infertility, malformations in offspring, and increased risk of cancer.

In contrast, other organs such as the brain, liver, and skin exhibit different levels of radiosensitivity due to varying cellular composition and division rates. The brain, for instance, contains mature nerve cells that do not divide frequently, and thus are less radiosensitive. The liver also has a mix of differentiated and some stem cells, leading to lower radiosensitivity compared to the gonads. Skin has a higher turnover rate among its cells, but still does not reach the levels of radiosensitivity seen in the reproductive organs. This understanding of radiosensitivity is crucial in radi