growth hormone (gh)
71Hormone — Hormones (from Greek Polytonic|ὁρμή impetus ) are chemicals released by cells that affect cells in other parts of the body. Only a small amount of hormone is required to alter cell metabolism. It is also a chemical messenger that transports a… …
72Hormone — A chemical substance produced in the body that controls and regulates the activity of certain cells or organs. Many hormones are secreted by specialized glands such as the thyroid gland. Hormones are essential for every activity of daily living,… …
73Hormone, growth — A hormone made in the pituitary gland that stimulates the release of another hormone called somatomedin by the liver, thereby causing growth. Growth hormone is synonymous with somatotropin and somatropin. More specifically (and technically),… …
74Growth curve — A growth curve in biology generally concerns a measured property such as population size, body height or biomass. Values for the measured property can be plotted on a graph as a function of time; see Figure 1 for an example. ExamplesBacterial… …
75Hormone sexuelle — Les hormones sexuelles sont de deux types : protéines ou stéroïdes. Les stéroïdes ont un poids moléculaire aux environs de 300 daltons ; ils ont donc une petite taille. Vu leur taille et leur liposolubilité, ils peuvent diffuser… …
76hormone — noun ADJECTIVE ▪ female, male ▪ growth, sex ▪ children who do not produce enough growth hormone VERB + HORMONE ▪ produce …
77growth substance — noun see growth regulator * * * growth substance noun One of a number of substances (sometimes called plant hormones) formed in plants or synthetically, that at low concentrations have specific effects on plant growth or development • • • Main… …
78growth hormone–releasing hormone — (GH RH) a neuropeptide elaborated in the hypothalamus that binds to specific receptors on the somatotrophs of the adenohypophysis and stimulates the secretion of growth hormone. Called also somatocrinin, somatoliberin, and somatotropin releasing… …
79growth — n. 1 the act or process of growing. 2 an increase in size or value. 3 something that has grown or is growing. 4 Med. a morbid formation. 5 the cultivation of produce. 6 a crop or yield of grapes. Phrases and idioms: full growth the size… …
80growth hormone–secreting adenoma — a pituitary adenoma made up of somatotroph like cells that secrete excessive amounts of growth hormone; it may cause gigantism in children or acromegaly in adults. Called also somatotrope a., somatotroph a., and eosinophilic a …
