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Unformatted text preview: potentially reinforced by circulating epinephrine and norepinephrine from the adrenal medulla. Epinephrine and norepinephrine act on the -adrenergic receptors of autorhythmic cells and striated myocardial cells. h The actions on autorhythmic and contractile cells differ due to the high content of contractile proteins in the striated contractile cells. E.2. Hormonal control:...
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- Fall '09