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Questions and Answers
What is the main characteristic that determines the control of secretion of a hormone?
Which class of hormones is derived from the amino acid tyrosine?
What is the primary characteristic that distinguishes steroids from other hormones?
What is the primary function of leukotrienes?
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What is the primary characteristic of eicosanoids?
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How do hormones influence target cells?
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What is the primary function of a receptor in a target cell?
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What is the result of the conversion of the input signal to a biochemical change in the cell?
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Where are water-soluble hormones unable to diffuse into?
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What is the outcome of receptor activation by the input signal?
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What is the result of the stimulation of synthesis of protein or regulatory molecules?
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What is the role of second messengers in the conversion of the input signal to a biochemical change?
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What is the primary function of prolactin in pregnancy and lactation?
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Which hormone inhibits the production of prolactin?
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What is a common symptom of hyperprolactinemia in females?
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What is the relationship between estrogen and prolactin levels?
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What is a common characteristic of anterior pituitary tumors?
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What is the primary function of hypothalamic releasing and inhibitory hormones?
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Which hormone does not function through a target gland?
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What is the role of the primary capillary plexus in the hypothalamic-hypophysial portal system?
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What is the effect of hypothalamic hormones on the anterior pituitary?
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Which anterior pituitary hormone is derived from the prohormone proopiomelanocortin (POMC)?
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What is the characteristic of anterior pituitary hormones, except for growth hormone?
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What is the mechanism by which insulin is antagonized by glucagon?
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What is the role of the hypothalamus in regulating the anterior pituitary?
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What is the effect of growth hormone on the body?
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What is the primary function of negative feedback systems in regulating hormone secretion?
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What type of stimulus directly stimulates the secretion of parathyroid hormone (PTH) in response to declining blood Ca2+ concentrations?
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What is the role of the sympathetic nervous system in regulating hormone secretion?
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What is the effect of antagonism on hormone secretion?
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What is the term for the interaction of hormones at target cells?
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