| AF | abnormal frequency; acid-fast; adult female; afebrile; aflatoxin; albumin-free; albumose-free; aldeh... |
|---|---|
| AFL | antifibrinolysin; artificial limb; atrial flutter |
| AHES | artificial heart energy system |
| AHJ | artificial hip joint |
| AI/COAG | artificial intelligence hemostasis consultant system |
| K cells | Lymphocyte-like effector cells which mediate antibody-dependent cell cytotoxicity. They kill antibody-coated target cells which they bind with their fc receptors. (12 Dec 1998) |
|---|---|
| yolk cells | Primitive embryonic cell's lying between the endoderm and mesoderm; they probably give rise to the endothelium of vitelline vessels. (05 Mar 2000) |
| killer cells | Lymphocyte-like effector cells which mediate antibody-dependent cell cytotoxicity. They kill antibody-coated target cells which they bind with their fc receptors. (12 Dec 1998) |
| killer cells, lymphokine-activated | Cytolytic lymphocytes with the unique capacity of killing natural killer (nk)-resistant fresh tumour cells. They are interleukin-2-activated nk cells that have no MHC (major histocompatibility complex) restriction or need for antigen stimulation. Lak cells are used for adoptive immunotherapy in cancer patients. (12 Dec 1998) |
| killer cells, natural | Cells responsible for spontaneous cytotoxicity of a variety of tumour cells without prior immunization. These natural killer cells are found in non-immune humans and experimental animals and are thought by some to be the same as killer cells (killing by antibody-dependent cell cytotoxicity), but they can also kill in the absence of antibody. (12 Dec 1998) |
| Kulchitsky cells | Cell's with granules that may be either argentaffinic or argyrophilic; the cell's, scattered throughout the digestive tract, are of several varieties and are believed to produce at least 20 different gastrointestinal hormones and neurotransmitters. Synonym: enterochromaffin cells, Kulchitsky cells. (05 Mar 2000) |
| kupffer cells | Large star-shaped or pyramidal cells with a large oval nucleus and a small prominent nucleolus. These intensely phagocytic cells line the walls of the sinusoids of the liver and form a part of the reticuloendothelial system. (12 Dec 1998) |
| labyrinth supporting cells | Cells forming a framework supporting the organ of corti. Specific cells are those of claudius, deiters and hensen. (12 Dec 1998) |
| foam cells | Lipid-laden macrophages originating from monocytes or from smooth muscle cells. (12 Dec 1998) |
| 3t3 cells | A cell line derived from fibroblasts of disaggregated swiss mouse embryos. The line is a valuable in vitro host system for oncogenic virus transformation studies since 3t3 cells possess a high sensitivity to contact inhibition. (12 Dec 1998) |
| follicular ovarian cells | Cell's of an ovarian follicle that surround the developing ovum; they form the stratum granulosum ovarii and cumulus oophorus. (05 Mar 2000) |
| langerhans cells | Recirculating, dendritic, antigen-presenting cells containing characteristic racket-shaped granules (birbeck granules). They are found principally in the stratum spinosum of the epidermis and are rich in class II major histocompatibility complex molecules. (12 Dec 1998) |
| Langerhans' cells | Dendritic clear cell's in the epidermis, containing distinctive granules that appear rod-or racket-shaped in section, but lacking tonofilaments, melanosomes, and desmosomes; they carry surface receptors for immunoglobulin (Fc) and complement (C3), and are believed to be antigen fixing and processing cell's of monocytic origin; active participants in cutaneous delayed hypersensitivity. (05 Mar 2000) |
| Langhans' cells | Multinucleated giant cell's seen in tuberculosis and other granulomas; the nuclei are arranged in an arciform manner at the periphery of the cell's. Synonym: Langhans'-type giant cells. Synonym: cytotrophoblastic cells. (05 Mar 2000) |
| Langhans'-type giant cells | Multinucleated giant cell's seen in tuberculosis and other granulomas; the nuclei are arranged in an arciform manner at the periphery of the cell's. Synonym: Langhans'-type giant cells. Synonym: cytotrophoblastic cells. (05 Mar 2000) |