What is the purpose of margination?
Margination is defined as the movement of particles in flow toward the walls of a channel. The margination of particles in blood has applications in microfluidic devices for the removal of pathogens and separation of cells (1–4).
What happens in margination?
1 Margination in Microvessels. In blood flow, while RBCs accumulate in the center of blood vessels and develop a cell-depleted peripheral layer (CDPL) near the vessel wall, leukocytes and platelets flow in CDPL. This phenomenon is termed margination.
What is margination in inflammation?
[ mär′jə-nā′shən ] n. The adhesion of white blood cells to the endothelial cells of blood vessels that occurs at the site of an injury during the early phases of inflammation.
What is mean by margination of WBCs?
To facilitate the adhesion, white blood cells migrate toward the vessel walls in blood flow through a process called margination. In addition, aggregation interactions between red blood cells lead to enhanced white-blood-cell margination.
What does Margination mean in dentistry?
Medical Definition of margination 1 : the act or process of forming a margin specifically : the adhesion of white blood cells to the walls of damaged blood vessels. 2 : the action of finishing a dental restoration or a filling for a cavity margination of an amalgam with a bur.
How are leukocytes transported?
Leukocytes pass through spaces between blood vessel cells and the process from attachment to transport across the wall of the blood vessels is called diapedesis. Diapedesis is followed by movement of leukocytes toward the areas of infection marked by high concentration of inflammatory proteins.
What is Margination quizlet?
Margination. A term used to describe the process of removing excess restorative material at the cavosurface margins. Margination. Removing excess amalgam, excess composite, or flash are terms that are synonomous with. Amalgam Finishing.
How are diapedesis and chemotaxis related?
They are able to move into and out of blood vessels known as diapedesis. They can move by ameboid motion, which means they will change shape to squeeze through tissues. They can respond to chemicals released by damaged tissues, known as chemotaxis.
What is the difference between Margination and emigration?
As nouns the difference between margination and emigration is that margination is the provision of margins while emigration is emigration.
What is Margination in phagocytosis?
In margination, leukocytes assume marginal positions in the blood vessels. They intermittently stick to the walls of the venules and roll along them until they become firmly attached to the vessel wall (adhesion). At this point, they begin to move out of the vessel.