Rad Bio Section 3

Front

What is the least radiosensitive cell in the human body?

Back

Nerve cells are the least radiosensitive cells in the human body.

Front

What does the term 'aerobic' mean?

Back

The term 'aerobic' means oxygenated.

Front

What does LET stand for in radiation biology?

Back

LET stands for Linear Energy Transfer, which describes the rate at which energy is deposited by a charged particle as it travels through matter.

Front

What type of dose response curve describes most late effects such as leukemia, cancer, and genetic effects?

Back

The linear non-threshold dose response curve describes most late effects such as leukemia, cancer, and genetic effects.

Front

What does a low D37 number indicate about a cell's radiosensitivity?

Back

A low D37 number indicates that a cell is radiosensitive.

Front

Define radiosensitivity.

Back

Radiosensitivity is the susceptibility of cells, tissues, or organisms to the harmful effects of ionizing radiation.

Front

What is the significance of the term 'RBE'?

Back

RBE stands for Relative Biological Effectiveness, which compares the biological effectiveness of different types of radiation.

Front

Explain the concept of 'OER' in radiation biology.

Back

OER stands for Oxygen Enhancement Ratio, which is the ratio of the dose of radiation required to cause a certain biological effect in anoxic conditions to the dose required in oxygenated conditions.

Front

What is the difference between radioresistant and radiosensitive cells?

Back

Radioresistant cells require a higher dose of radiation to achieve the same biological effect as radiosensitive cells.

Front

What is the role of lymphocytes in radiation exposure?

Back

Lymphocytes are highly radiosensitive cells that play a crucial role in the immune response and are affected by radiation exposure.