Social Studies, 04.03.2020 01:32 jokerr5584
The force of contraction (of the heart) can be changed by:
a. beta1 adrenergic rececptors. Increasing cAMP leads to increases in PKA, which increases sarcoplasmic calcium by opening VG Ca+ channels for a longer time, opening SR Ca2+, and increasing the rate of Ca2+ removed by SERCA pumps
b. beta2 adrenergic receptors. Increasing cAMP leads to increases in PKA, which increases sarcoplasmic calcium by opening VG Ca+ channels for a longer time, opening SR Ca2+, and increasing the rate of Ca2+ removed by SERCA pumps
c. muscarinic ACh receptors. Activation of the receptors leads to decreased Ca2+ entry and increased K+ entry in ventricles
d. not by the parasympathetic NS (at least, not the ventricles)
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The force of contraction (of the heart) can be changed by:
a. beta1 adrenergic rececptor...
a. beta1 adrenergic rececptor...
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