/physiology. /function . Used with organs, tissues, and cells of unicellular and multicellular organisms for normal function. It is used also with biochemical substances, endogenously produced, for their physiologic role. . 1.00
/cytology. /cell structure . /cellular aspects . /cellular morphology . /cellular structure . /cell morphology . Used for cellular appearance of unicellular and multicellular organisms. . 0.59
/abnormalities. /agenesis . /anomalies . /aplasia . /atresia . /birth defects . /congenital defects . /defects . /deformities . /hypoplasia . /malformations . Used with organs for congenital defects producing changes in the morphology of the organ. It is used also for abnormalities in animals. . 0.47
/enzymology. /enzyme activity . /enzymes . Used with organisms, except vertebrates, and with organs and tissues. It is also used with diseases for enzymes during the course of the disease, but excludes diagnostic enzyme tests, for which "diagnosis" is used. . 0.44
/metabolism. /biochemical pathways . /biodegradation . /biotransformation . /catabolism . /degradation . /incorporation . /mobilization . /turnover . Used with organs, cells and subcellular fractions, organisms, and diseases for biochemical changes and metabolism. It is used also with drugs and chemicals for catabolic changes (breakdown of complex molecules into simpler ones). For anabolic processes (conversion of small molecules into large), BIOSYNTHESIS is used. For enzymology, pharmacokinetics, and secretion use the specific subheadings. . 0.42
/virology. /viruses . Used with organs, animals, and higher plants and with diseases for virologic studies. For bacteria, rickettsia, and fungi, "microbiology" is used; for parasites, "parasitology" is used. . 0.40
/chemical synthesis. Used for the chemical preparation of molecules in vitro. For the formation of chemical substances in organisms, living cells, or subcellular fractions, "biosynthesis" is used. . 0.40
/drug effects. /effect of the drug . /effect of drugs . /effect of a drug . /medication effect . /effect of the medication . /effect of a chemical . /pharmacologic effect . /effect of a pharmaceutical sustance . /effect of a chemical substance . /chemical substance effect . /chemical effect . /drug treatment effect . /effect of the drug treatment . /effects of medications . /effects of a drug . /medication effects . /effects of the medication . /effects of the medications . /effects of the chemical substance . /chemical substance effects . /effects of chemical substances . /effects of the pharmaceutical substance . /effects of pharmaceutical substances . /effects of the drug . /effects of the drugs . /pharmacologic effects . /effect of remedies . /effect of the remedy . /effects of remedies . /effects of the remedies . /effects of the drug treatment . /effects of chemotherapy . Used with organs, regions, tissues, or organisms and physiological and psychological processes for the effects of drugs and chemicals. . 0.38
Unicellular Eukaryotic Organisms. Single-Celled Eukaryotic Organisms . Eukaryotic Organisms, Unicellular . Unicellular Eukaryotes . Eukaryotic organisms that consist of a single cell throughout their life cycle. . 0.38
/embryology. /embryonic aspects . /embryonic development . /fetal development . /prenatal development . Used with organs, regions, and animal headings for embryologic and fetal development. It is used also with diseases for embryologic factors contributing to postnatal disorders. . 0.38
