Exudates
Exudates
Exudates (pronounced: ex·u·date, /ˈeksyəˌdāt/) are fluids, cells, or other substances that are slowly discharged from cells or blood vessels through small pores or breaks in cell membranes.
Etymology
The term "exudate" is derived from the Latin word "exsudare", which means "to sweat out".
Definition
Exudates are high-protein fluids that have escaped from blood vessels and have been deposited in tissues or on tissue surfaces, usually as a result of inflammation. They are typically rich in various inflammatory cells and can also contain both debris from local cells and high amounts of microorganisms if an infection is present.
Types of Exudates
There are several types of exudates, including:
- Serous Exudates: These are clear, watery fluids that are often found in mild inflammation conditions.
- Fibrinous Exudates: These are thick and sticky fluids with a high cell and fibrin content. They are often seen in more severe inflammation conditions.
- Purulent Exudates: Also known as pus, these exudates contain dead white blood cells, debris from destroyed cells, and microorganisms if an infection is present.
- Hemorrhagic Exudates: These exudates contain red blood cells and are often seen in cases where there is severe damage to the blood vessels.
Related Terms
- Inflammation: A protective response involving immune cells, blood vessels, and molecular mediators to remove harmful stimuli.
- Pus: A thick fluid containing dead tissue, cells, and bacteria; it is often a sign of infection.
- Fibrin: A protein involved in the clotting of blood.
- White Blood Cells: Cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.
External links
- Medical encyclopedia article on Exudates
- Wikipedia's article - Exudates
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