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14 Cards in this Set
- Front
- Back
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describe the islets of langerhans
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pancreatic islets
-thousands of tiny clumps of cells -produces 3 hormones: insulin, glucagon and somatostatin |
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what is insulin
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allows cell membranes to absorb glucose, amino acids and fatty acids
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what is glucagon
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-raise blood glucose levels
-stimulates glucogenesis and gluconeogenesis in the liver |
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what is somatostatin
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inhibits secretion of insulin, glucagon and GH
-decreases GI motility |
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what hormones do the testes produce
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androgens-mostly testosterone
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what 2 hormones do the ovaries produce
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estrogen and progestins
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what is estrogen
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produced by developing follicle cells in response to FSH
-cause physical and behavioural changes of estrus |
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what is are progestins
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progesterone
-LH stimulates the follicle to develop into corpus leuteum,which produces progestins -important for helping to maintain pregnancy - |
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what hormone does the kidneys secrete and what does it do
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erythropoietin
-stimulates RBC production in response to hypoxia |
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what hormones does the stomach produce and what do they do
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gastrin
-stimulates HCL and digestive enzyme production -stimulates muscular contractions |
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what hormones do the small intestine secrete and what do they do
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secretin
-stimulates pancreas to secrete bicarbonate to neutralise chyme from stomach cholecystokinin (CCK) -inhibits gastric secretions and motility -stimulates gall bladder to contract |
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what hormones do the thymus secrete
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thymosin and thymopoietin
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what are eicosanoids
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hormone-like compounds derived from unsaturated fatty acids
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what 3 hormones are included in eicosands
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leukotrienes
thromboxanes prostaglandins |
