Which term means the destruction of tissue by using extreme cold, often by using liquid nitrogen?

• A. Cryosurgery
• B. Capillary Action
• C. Contaminate
• D. Exudate

Answer: (A)

Cryosurgery is the destruction of tissue by extreme cold, often using liquid nitrogen. The intense freezing causes ice crystals to form inside cells and cuts off blood flow, leading to cell death and controlled removal of abnormal tissue. This approach is commonly used for skin lesions, warts, and some small tumors. The other terms don’t describe tissue destruction by cold: capillary action is the movement of liquid through narrow spaces due to adhesion and cohesion, contaminate means to pollute, and exudate is inflammatory fluid that leaks from tissues.