Medical dictionary. 2011.
phagocytosis — /fag euh suy toh sis/, n. Physiol. the ingestion of a smaller cell or cell fragment, a microorganism, or foreign particles by means of the local infolding of a cell s membrane and the protrusion of its cytoplasm around the fold until the material … Universalium
contact inhibition of phagocytosis — Phenomenon described in sheets of kidney epithelial cells that, when confluent, lose their weak phagocytic activity, probably because of a failure of adhesion of particles to the dorsal surface in the absence of ruffles … Dictionary of molecular biology
Dust cell — A dust cell (or alveolar macrophage) is a type of macrophage found in the pulmonary alveolus, near the pneumocytes, but separated from the wall.Activity of the dust cells is relatively high, because they are located at one of the major boundaries … Wikipedia
Alveolar macrophage — Micrograph showing hemosiderin laden alveolar marcophages, as seen in a pulmonary haemorrhage. H E stain. An alveolar macrophage (or dust cell) is a type of macrophage found in the pulmonary alveolus, near the pneumocytes, but separated from the… … Wikipedia
immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… … Universalium
Fc receptor — An Fc receptor is a protein found on the surface of certain cells including natural killer cells, macrophages, neutrophils, and mast cells that contribute to the protective functions of the immune system.Its name is derived from its binding… … Wikipedia
Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… … Wikipedia
Macrophage — A macrophage of a mouse stretching its arms (pseudopodia) to engulf two particles, possibly pathogens. Trypan Blue Exclusion. Latin macrophagocytus … Wikipedia
Outer segment disc shedding — The retina contains two types of photoreceptors – rods and cones. There are about 6 7 million cones that provide color vision to the eye, and they are very concentrated in a central spot in the retina, called the macula. However, the rods are… … Wikipedia
Microglia — Code TH H2.00.06.2.00004 Microglia are a type of glial cell that are the resident macrophages of the brain and spinal cord, and thus act as the first and main form of active immune defense in the central nervous system (CNS). Microglia constitute … Wikipedia
