phagocytosis

The process of ingestion and digestion by cells of solid substances, e.g., other cells, bacteria, bits of necrosed tissue, foreign particles. SEE ALSO: endocytosis. [phagocyte + G. -osis, condition]
- induced p. p. occurring when bacteria are subjected to the action of opsonins in blood and then brought in contact with leukocytes.
- spontaneous p. p. occurring when a culture of bacteria is brought in contact with washed leukocytes in an indifferent medium, such as a physiologic salt solution.

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phago·cy·to·sis .fag-ə-sə-'tō-səs, -sī- n, pl -to·ses -.sēz the engulfing and usu. the destruction of particulate matter by phagocytes that serves as an important bodily defense mechanism against infection by microorganisms and against occlusion of mucous surfaces or tissues by foreign particles and tissue debris
phago·cy·tot·ic -'tät-ik adj

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n.
the engulfment and digestion of bacteria and other foreign particles by a cell (see phagocyte). Compare pinocytosis.

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phago·cy·to·sis (fa″go-si-toґsis) endocytosis of particulate material, such as microorganisms or cell fragments. The material is taken into the cell in membrane-bound vesicles (phagosomes) that originate as pinched-off invaginations of the plasma membrane. Phagosomes fuse with lysosomes, forming phagolysosomes in which the engulfed material is killed and digested. See phagocyte. phagocytotic adj

Phagocytosis. iNOS, Inducible nitric oxide synthase; NO, nitric oxide; ROS, reactive oxygen species.


Medical dictionary. 2011.

Look at other dictionaries:

  • phagocytosis — phagocytosis. См. фагоцитоз. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • phagocytosis — [fag΄ə sī tō′sis] n. [ModL: see PHAGOCYTE & OSIS] the ingestion and destruction by phagocytes of cells, microorganisms, foreign particles, etc.: see ENDOCYTOSIS phagocytotic [fag΄ō sītät′ik] adj …   English World dictionary

  • Phagocytosis — Expand|article|date=July 2007 (the latter not pictured)Parts: 1. Pathogens 2. Phagosome 3. Lysosomes 4. Waste material 5. Cytoplasm 6. Cell membrane] Phagocytosis is the cellular process of engulfing solid particles by the cell membrane to form… …   Wikipedia

  • 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

  • phagocytosis — noun (plural phagocytoses) Etymology: New Latin Date: 1889 the engulfing and usually the destruction of particulate matter by phagocytes • phagocytotic adjective …   New Collegiate Dictionary

  • phagocytosis — n. [Gr. phagein, to eat; kytos, container] The ingestion of solid particles by a cell; phagocytic adj …   Dictionary of invertebrate zoology

  • phagocytosis — (fag o si to sis) The endocytotic process in which a cell encloses large particles in a membrane delimited phagocytic vacuole or phagosome and engulfs them …   Dictionary of microbiology

  • phagocytosis — Uptake of particulate material by a cell (endocytosis). See opsonization, phagocyte …   Dictionary of molecular biology

  • phagocytosis — noun The process where a cell incorporates a particle by extending pseudopodia and drawing the particle into a vacuole of its cytoplasm …   Wiktionary

  • phagocytosis — fægÉ™saɪ təʊsɪs n. destruction by white cells, destruction by phagocytes …   English contemporary dictionary

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