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Endocrine System
| Term | Definition |
|---|---|
| Endocrinology | Study of the endocrine system |
| Hormone | Internal secretion of a gland or an organ that regulates a boy function |
| Steroid | Organic compound derived from fats |
| Target Cells | Secreted substances directed to cells some distance away from the original site of secretion |
| Hypersecretion | excessive secretion |
| Hyposecretion | Inadequate secretion |
| Synergistic relationship | Harmonious action of two hormones producing a response greater than the total effect of each operating exclusively |
| Permissive relationship | Presence of one hormone is essential for the action of another |
| Inhibitory relationship | Interaction of two or more hormones to maintain a constant level of activity |
| Diabetes Insipidus | Metabolic disorder characterized by intense thirst and excretion of large amounts of urine |
| Diabetes Mellitus | Disorder of Carbohydrate metabolism characterized by hyperglycemia and glycosuria related to insulin production |
| Tetany | Disturbed calcium metabolism resulting in intermittent muscle spasms of the extremities |
| Catecholamines | HOrmones secreted by adrenal medulla including epinephrine and norepinephrine |
| Diuresis | Excess urine excretion |
| Hyperglycemia | Elevated blood sugar |
| Hypoglycemia | Lowered blood sugar |
| Exocrine System | Secrete into tubes or ducts, which lead to internal or external body surfaces |
| Endocrine System | Includes cells, tissues, and organs that secrete hormones into body fluids or internal environment |
| External secretion | Ducts lead to and secretions empty into internal or external body areas |
| Internal secretion | Hormones are released into ECF which diffuses into blood |
| Endocrine+Nervous= | Homeostasis |
| Amines | Neurons that produce hormones |
| Peptide hormones are | Short chains of amino acid |