| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
|---|---|
| PAG | periaqueductal gray [matter]; polyacrylamide gel; pregnancy-associated globulin; proliferation-assoc... |
| PAM | pancreatic acinar mass; penicillin aluminum monostearate; peptidylglycine alpha-amidating monooxygen... |
| PAPP | para-aminopropiophenone; pregnancy-associated plasma protein |
| PAPPA | pregnancy-associated plasma protein A |
| antigen-presenting cells | Immunocompetent cells, usually ia positive, that mediate the cellular immune response by processing and presenting antigens or mitogens which stimulate T-cell activation. (12 Dec 1998) |
|---|---|
| apud cells | Cells derived from primitive cell types in the neural crest. During ontogeny they migrate to the foregut and specific locations of the neuroendocrine system. Properly located these cells form part of the normal hormone producing tissues of the neuroendocrine system. If misdirected these cells may become hyperplastic, adenomatous, or malignant (cf. Apudoma). (12 Dec 1998) |
| argentaffin cells | Cell's that contain granules which precipitate silver from an ammoniacal silver nitrate solution. See: enteroendocrine cells. (05 Mar 2000) |
| auditory receptor cells | Columnar cell's in the epithelium of the organ of Corti, having hairs (stereocilia) on their apical ends. See: Corti's cells. (05 Mar 2000) |
| basal cells | Small, round cells found in the lower part, or base, of the epidermis, the outer layer of the skin. (12 Dec 1998) |
| B-cells | A type of white blood cell. Many B-cells mature into plasma cells, which can produce antibody proteins necessary to fight off infections, such as viruses. (12 Dec 1998) |
| Berger cells | Cell's in the hilus of the ovary that produce androgens; they are thought to be the ovarian counterpart of the interstitial cell's of the testis. Synonym: Berger cells. (05 Mar 2000) |
| Betz cells | Large pyramidal cell's in the motor area of the precentral gyrus of the cerebral cortex. Synonym: Bevan-Lewis cells. (05 Mar 2000) |
| Bevan-Lewis cells | Large pyramidal cell's in the motor area of the precentral gyrus of the cerebral cortex. Synonym: Bevan-Lewis cells. (05 Mar 2000) |
| Bizzozero's red cells | Nucleated red blood cells in human blood. (05 Mar 2000) |
| Boll's cells | Basal cell's in the lacrimal gland. (05 Mar 2000) |
| bone marrow cells | The fat cells (adipocytes), large nucleated cells or myelocytes, and giant cells called megakaryocytes, filling the meshes making up the bone marrow, a meshwork of connective tissue containing branching fibres. (12 Dec 1998) |
| border cells | Cell's forming the inner boundary of the organ of Corti. (05 Mar 2000) |
| Bottcher's cells | Cell's of the basilar membrane of the cochlea. (05 Mar 2000) |
| Bowenoid cells | Cells characteristic of Bowen's disease; scattered large, round intraepidermal keratinocytes with a hyperchromatic nucleus and pole cytoplasm. (05 Mar 2000) |