| secretogogue | <physiology> Substance that induces secretion from cells, originally applied to peptides inducing gastric and pancreatic secretion. (18 Nov 1997) |
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| secretogranins | Family of related acidic proteins (400-600 residues) found in many endocrine cell secretory vesicles. Secretogranin 1 = chromogranin B, secretogranin 2 = chromogranin C. (18 Nov 1997) |
| secretomotor | Stimulating secretion. Origin: secrete = motor, mover (05 Mar 2000) |
| secretomotor nerve | <anatomy, nerve> A nerve conveying impulses that excite functional activity in a gland. Synonym: secretomotor nerve. (05 Mar 2000) |
| secretor | <haematology, physiology> An individual whose bodily fluids (saliva, semen, vaginal secretions) contain a water-soluble form of the antigens of the ABO blood group. Secretors constitute 80% of the population. In forensic medicine, the examination of fluids has enhanced the ability of law enforcement officials to develop identifying information about perpetrators and narrow a field of suspects. (05 Mar 2000) |
| secretor factor | <haematology> The capacity to secrete antigens of the ABO blood group in saliva and other body fluids, controlled by a pair of allelic genes designated Se and se (or S and s), with the Se phenotype dominant to se. The saliva of genotypes SeSe and Sese contains the blood group substances A, B, or H found in their erythrocytes; the saliva of nonsecretors (genotype sese) contains no blood group substance; tests for ABH secretion are useful in genetic linkage and population studies; the secretor phenomenon is also closely associated with the Lewis blood group. (05 Mar 2000) |
| secretory | <physiology> Secreting; performing, or connected with, the office secretion; secernent; as, secretory vessels, nerves. A secretory vessel; a secernent. Origin: Cf. F. Secretoire. See Secrete. Source: Websters Dictionary (01 Mar 1998) |
| secretory canaliculus | See: intercellular canaliculus, intracellular canaliculus. (05 Mar 2000) |
| secretory carcinoma | <tumour> Carcinoma of the breast with pale-staining cells showing prominent secretory activity, as seen in pregnancy and lactation, but found mostly in children. Synonym: juvenile carcinoma. (05 Mar 2000) |
| secretory cell | <biology> Cells specialised for secretion, usually epithelial. Those that secrete proteins characteristically have well developed rough endoplasmic reticulum, whereas conspicuous smooth endoplasmic reticulum is typical of cells that secrete lipid or lipid derived products (e.g. Steroids). (18 Nov 1997) |
| secretory component | <physiology> A glycoprotein found in a variety of external secretions (tears, bile, colostrum) usually complexed to secreted polymeric immunoglobulins (IgA or, less frequently IgM). It is derived, by proteolytic cleavage, from the polymeric immunoglobulin receptor (receptors, polymeric immunoglobulin) and probably functions to protect the immunoglobulins from proteolysis in the secretions. (12 Dec 1998) |
| secretory component of IgA | <immunology, protein> A polypeptide chain of about 60 kD that aids secretion of the IgA, a portion of the IgA receptor on the plasmalemma of the inner side of the epithelial cells lining the gut, which is proteolysed when the IgA receptor complex has travelled through the cell after receptor mediated endocytosis at the inner face, to the outer (luminal) face. (18 Nov 1997) |
| secretory cyst | A cyst resulting from some obstruction to the excretory duct of a gland. Synonym: distention cyst, secretory cyst. (05 Mar 2000) |
| secretory duct | A type of intralobular duct found in some salivary glands that modifies the secretory product; it derives its name from extensive infolding of the basal membrane. Synonym: salivary duct, secretory duct. (05 Mar 2000) |
| secretory granule | A membrane-bound particle, usually protein, formed in the granular endoplasmic reticulum and the Golgi complex. (05 Mar 2000) |