The process in which antibody and complement proteins attach to the target cell and enhance the phagocyte's ability to engulf the target cell is known as:
a. opsonization.
b. phagocytosis.
c. the lymphoreticular system.
d. the portal circulation.
A
Neutrophils are attracted to and migrate to areas of inflammation or bacterial invasion, where they ingest and kill invading microorganisms by phagocytosis. Once phagocytes have been attracted to an area by the release of mediators, a process called opsonization occurs, in which antibody and complement proteins attach to the target cell and enhance the phagocyte's ability to engulf the target cell. When infectious organisms escape the local phagocytic responses, they may be engulfed and destroyed in a similar fashion by the tissue macrophages within the lymphoreticular organs. The portal circulation of the spleen and liver filters the majority of blood, where infectious organisms can be removed before infecting the tissues.
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