| giant cells, langhans | Multinucleated cells (fused macrophages) seen in granulomatous inflammations such as tuberculosis, syphilis, sarcoidosis, and deep fungal infections. They resemble foreign-body giant cells (giant cells, foreign body) but langhans giant cells contain less chromatin and their nuclei are arranged peripherally in a horseshoe-shaped pattern. Langhans giant cells occur frequently in delayed hypersensitivity. (12 Dec 1998) |
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| mastoid air cells | Numerous small intercommunicating cavities in the mastoid process of the temporal bone that empty into the mastoid or tympanic antrum. Synonym: cellulae mastoideae, mastoid cells, mastoid sinuses. (05 Mar 2000) |
| mastoid cells | Numerous small intercommunicating cavities in the mastoid process of the temporal bone that empty into the mastoid or tympanic antrum. Synonym: cellulae mastoideae, mastoid cells, mastoid sinuses. (05 Mar 2000) |
| Gierke cells | Small cells characteristic of the substantia gelatinosa (lamina II) of the dorsal horn of the spinal cord. (05 Mar 2000) |
| vestibular hair cells | Cell's in the sensory epithelium of the maculae and cristae of the membranous labyrinth of the inner ear; afferent and efferent nerve fibres of the vestibular nerve end synaptically upon them; from the apical end of each cell a bundle of stereocilia and a kinocilium extend into the statoconial membrane of the maculae and the cupula of the cristae. (05 Mar 2000) |
| castration cells | Altered basophilic cells of the anterior lobe of the pituitary that develop following castration; the body of the cell is occupied by a large vacuole that displaces the nucleus to the periphery, giving the cell a resemblance to a signet ring. Synonym: signet ring cells. (05 Mar 2000) |
| Reed cells | Large cells of unknown origin, usually multinucleate, whose presence is the common histologic characteristic of hodgkin disease. (12 Dec 1998) |
| reed-sternberg cells | Large cells of unknown origin, usually multinucleate, whose presence is the common histologic characteristic of hodgkin disease. (12 Dec 1998) |
| Virchow's cells | The lacunae in osseous tissue containing the bone cell's; also the bone cell's themselves. Synonym: corneal corpuscles. (05 Mar 2000) |
| glitter cells | Polymorphonuclear leukocytes that stain pale blue with gentian violet and contain cytoplasmic granules that exhibit brownian movement; observed in urine sediment and characteristic of pyelonephritis. (05 Mar 2000) |
| visual receptor cells | The rod and cone cell's of the retina. (05 Mar 2000) |
| pc12 cells | A cell line derived from a pheochromocytoma of the rat adrenal medulla. Pc12 cells stop dividing and undergo terminal differentiation when treated with nerve growth factor, making the line a useful model system for neuronal differentiation. (12 Dec 1998) |
| cells | Minute protoplasmic masses that make up organised tissue, consisting of a nucleus which is surrounded by protoplasm which contains the various organelles and is enclosed in the cell or plasma membrane. Cells are the fundamental, structural, and functional units of living organisms. (12 Dec 1998) |
| cells, cultured | Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. (12 Dec 1998) |
| cells, immobilised | Microbial, plant, or animal cells which are immobilised by attachment to solid structures, usually a column matrix. A common use of immobilised cells is in biotechnology for the bioconversion of a substrate to a particular product. (12 Dec 1998) |