What is the process called when fluid moves into tissue during inflammation?

The process by which fluid moves into tissue during inflammation is best described as exudation. This occurs as part of the inflammatory response, where blood vessels become more permeable, allowing fluid, proteins, and immune cells to escape into the surrounding tissues. This results in the characteristic signs of inflammation, such as swelling, redness, and heat. Exudation plays a crucial role in delivering essential nutrients and leukocytes to the affected area, helping to combat infection and promote healing.

Vasodilation refers to the widening of blood vessels, which increases blood flow to an area but does not specifically account for the movement of fluid into the tissue itself. Diapedesis is the migration of leukocytes through the blood vessel walls into the tissue, which occurs after exudation has created space for immune cells to enter. Resolution is the process by which inflammation subsides and tissues return to their normal state after the inflammatory response has successfully addressed the injury or infection.