Term
| main functions of the endocrine system... |
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Definition
regulates growth converts foods to energy resistance to stress maintains pH of body fluid and fluid balance reproduction |
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Term
| 3 main categories of hormones |
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Definition
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Term
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Definition
| simple hormones, no peptide bonds |
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Term
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Definition
chains of amino acids hydrophyllic travel in blood fast action |
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Term
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Definition
cholesterol based hydrophobic bound to a protein as it circulates |
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Term
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Definition
insulin - protein hormone, secreted by pancreas, decreases blood glucose level glucagon - hormone secreted by pancreas, increases blood glucose level |
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Term
| 2 ways glucagon increases blood sugar |
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Definition
glycogenolysis - glycogen breakdown gluconeogenesis - converting amino acids into new glucose |
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Term
| why is pancreas both endo and exocrine gland? |
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Definition
exocrine - digestive endocrine - producing insulin and glucagon |
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Definition
decreases reabsorbtion of calcium and phosphate from bones to blood lowers calcium and phosphate levels |
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Definition
-antagonist to calcitonin -increases reabsorbtion of calcium and phosphate from bones to blood |
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Term
| negative feedback system of thyroxine |
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Definition
metabolic rate goes down, hypothalamous secretes TRH TRH stimulates anterior pituitary to secrete TSH TSH stimulates thyroid to release thyroxinr neg feedback shuts off TRH until metabolic rate decreases |
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Term
| effect of aldersterone on the kidneys |
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Definition
| increases reabsorbtion of sodium and excretion of potassium |
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Term
| aldersterone > kidneys > effect on composition of blood |
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Definition
| reabsorbtion of water by kidneys helps maintain blood volume, pressure, and pH |
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Term
| when are epinephrine and norepinephrine secreted? |
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Definition
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Definition
| vasoconstriction, raises BP |
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Term
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Definition
| increased heart rate, decr peristalsis, incr cell resp |
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Term
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Definition
| incr energy prod and protein synthesis |
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