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9 Cards in this Set
- Front
- Back
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Oxytocin |
Stimulus: impulses from hypothalamic neurons in response to uterine stretching and suckling of infant at breast Released from: posterior pituitary Function and target cells: Uterus stimulates contractions; initiates labor, Breast initiates milk ejection Inhibited: Lack of appropriate neural stimuli |
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Antidiuretic Hornone (ADH) |
Stimulus: Impulses from hypothalamic neurons in reponse to increase blood solute concenration or decreased blood volume; also stimulated by pain, some drugs, low blood pressure Released from: poterior pituitary Function and target organs: kidneys stimulate ridney tubule cells to reabsorb water Inhibited: Adequate hydration of the body and by alcohol |
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Growth hormone (GH) |
Stimulus: GHRH+ release triggered by low blood levels of GH as well as by a # of secondary triggers such as hypoglycemia, increase blood levels of amino acids, low levels of fatty acids and excercise Released from: Anterior pituitary Function and target cells: liver, muscle,bone,cartilage: anabolic hormone; stimulates somatic growth; mobilizes fats, spares glucose Growth promoting effects mediated indirectly by IGF'S Inhibited: feedback inhibition exerted by GH and IGF'S and by hyperglycemia, hyperlipidemia, obesity, and emotional deprivation via increased GHIH and decreased GHRH release |
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Thyroid simulating hormone (TSH) |
Stimulus: TRH and infants indirectly by cold temperature Released from: Anterior pituitary Function and target cells: thyroid gland stimulated to release thryoid hormones Inhibited: feedback inhibition exerted by thyroid hormones on anterior pituitary and hypothalamus and by GHIH |
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Adrenocorticotropic hormone (ACTH) |
Stimulus: CRH stimuli that increase CRH release include fever, hypoglycemia, and other stessors Target cells and function: adrenal cortex, promotes release of glucocorticoids and androgens |
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Follicle-stimulating hormone (FSH) |
Stimulated: GnRH Target organ and effects: ovaries and testes in females stimulates ovarian follicle maturation and estrogen production, in males it stimulates sperm production Inhibited: feedback inhibition exerted by inhibin, and estrogen in females and testosterone in males |
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Lutenizing hormone (LH) |
Stimulated: GnRH Anterior pituitary Target organ and effects: ovaries and testes, in females it triggers ovulation and stimulates ovarian production of estrogen and progestorone, in males it promotes testosterone production Inhibited: feedback inhibition exerted by estrogen and progesterone in females and testosterone in males |
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Prolactin (PRL) |
Stimulus: decreased dopamine; release enhanced by estrogens, birth control pills, breast feeding and dopamine blocking drugs Anterior pituitary Target organ and effects: breast secretory tissue; promotes lactation |
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D |
