The most radiosensitive cells in the human body are:

The most radiosensitive cells in the human body are white blood cells. This sensitivity is primarily due to their high mitotic rate and the crucial role they play in the immune system. Rapidly dividing cells are generally more susceptible to radiation damage because the processes involved in DNA replication and repair are more active, making them more vulnerable to the disruptive effects of radiation.

In the context of radiation exposure, white blood cells are essential to monitor because they can lead to significant health impacts, such as an increased risk of infections, and can also indicate potential damage to the bone marrow where they are produced. Their radiosensitivity highlights the importance of radiation protection protocols to minimize exposure in environments where radiation is present.

While other types of cells, such as those in the reproductive organs and skin, can also be affected by radiation, white blood cells typically demonstrate a higher sensitivity which is a crucial factor for both safety and health monitoring in radiographic practices.