| FRC | Federal Radiation Council; frozen red cells; functional reserve capacity; functional residual capaci... |
|---|---|
| FS | factor of safety; Fanconi syndrome; Felty syndrome; fibromyalgia syndrome; field stimulation; Fisher... |
| G0 | quiescent phase of cells leaving the mitotic cycle |
| G1 | presynthetic gap [phase of cells prior to DNA synthesis] |
| G2 | postsynthetic gap [phase of cells following DNA synthesis] |
| horizontal cells of retina | Cell's in the outer part of the inner nuclear layer of the retina that lie with their axes more or less parallel with the surface. They are thought to connect the rods of one part of the retina with cones of another part. (05 Mar 2000) |
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| Purkinje's cells | <neurology, pathology> A class of output neurons in the cerebellum, which are the only neurons that convey signals away from the cerebellum. They form a layer of large ganglion cells near the surface of the cerebellum. Origin: From J. E. Purkinje, their discoverer. (12 Dec 1998) |
| Hortega cells | <pathology> A part of the neuroglia. It consists of small glial cells which migrate through nerve tissue and remove waste products by phagocytosis. (09 Oct 1997) |
| pyramidal cells | Projection neurons in the cerebral cortex and the hippocampus. Pyramidal cells have a pyramid-shaped soma with the apex and an apical dendrite pointed toward the pial surface and other dendrites and an axon emerging from the base. The axons may have local collaterals but also project outside their cortical region. (12 Dec 1998) |
| seromucous cells | Glandular cell's intermediate in histologic characteristics between serous and mucous cell's. Synonym: mucoalbuminous cells, seromucous cells. (05 Mar 2000) |
| sertoli cells | Elongated cells in the tubules of the testis to which the spermatids become attached. They provide support, protection, and, apparently, nutrition until the spermatids become transformed into mature spermatozoa. (12 Dec 1998) |
| Sertoli's cells | Elongated cell's in the seminiferous tubules to which spermatids are attached during spermiogenesis; they secrete androgen-binding protein and establish the blood-testis barrier by forming tight junctions with adjacent Sertoli's cell's. Synonym: nurse cells. (05 Mar 2000) |
| shadow cells | Immature leukocytes of any type that have undergone partial breakdown during preparation of a stained smear or tissue section, because of their greater fragility; smudge cell's are seen in largest numbers in chronic lymphocytic leukaemia. Synonym: basket cell, Gumprecht's shadows, shadow cells. (05 Mar 2000) |
| signet ring 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) |
| smudge cells | Immature leukocytes of any type that have undergone partial breakdown during preparation of a stained smear or tissue section, because of their greater fragility; smudge cell's are seen in largest numbers in chronic lymphocytic leukaemia. Synonym: basket cell, Gumprecht's shadows, shadow cells. (05 Mar 2000) |
| somatic cells | Cells of an animal or plant other than the reproductive cells. (14 Nov 1997) |
| splenic cells | Large round ameboid cell's (macrophages) in the splenic pulp. (05 Mar 2000) |
| Nageotte cells | Cell's found in the cerebrospinal fluid, one or two per cubic millimeter in health, but in greater numbers in various diseases. (05 Mar 2000) |
| squamous alveolar cells | Highly attentuated squamous cell's that form the gas-permeable epithelium lining the alveoli of the lungs. Synonym: type I cells. (05 Mar 2000) |
| squamous cells | Flat cells that look like fish scales; they make up most of the epidermis, the outer layer of the skin. (12 Dec 1998) |