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催产素对子宫的直接作用是使细胞膜的电位调整到最适合的范围，并使肌质网（myoplasmopla。morete）中贮存的钙被释放而激活肌浆（myoplasma）中收缩因子（contractionfactor），使子宫平滑肌收缩[1]。钙离子不仅是子宫平滑肌兴奋的必需离子，而且参与人体的凝血过程。孕妇未临
The direct effect of oxytocin on the uterus is to adjust the membrane potential to the most appropriate range and to release calcium stored in the myoplasmoplast (myoplasma) to activate the contraction factor in the myoplasma, Uterine smooth muscle contraction [1]. Calcium is not only an essential ion of uterine smooth muscle excitement, but also involved in the body’s blood clotting process. Pregnant women do not come