[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fswIwTg4u6CnTe_Do1RGZwC4gCJs8qkxWAn3bNY-2Xz8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":17,"related":18,"source":29,"type":30},[],"2026-03-21 23:28:24",326543098,[8,9,10,11,12],"窦房结—结间束—房室结—房室束—左右束支—浦肯耶纤维网","房室结—房室束—结间束—窦房结—左右束支—浦肯耶纤维网","心房肌—窦房结—房室结—结间束—左右束支—浦肯耶纤维网","窦房结—心房肌—房室结—结间束—房室束—浦肯耶纤维网","窦房结—心房肌—房室结—房室束—结间束—浦肯耶纤维网",{"courseId":14,"courseImg":15,"courseName":16},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","心内兴奋正常传导途径为()",[19,31,41,51,60,70,80,87,90,101],{"answer":20,"createTime":5,"id":21,"options":22,"question":28,"source":29,"type":30},[],326543091,[23,24,25,26,27],"Na+ 外流","Na+ 内流","Ca2+ 内流","Ca2+ 外流","Cl-内流","心室肌细胞动作电位 0 期去极是由于 ()","v1",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":40,"source":29,"type":30},[],326543092,[35,36,37,38,39],"膜电位处于零电位水平","是区别神经细胞和骨骼肌细胞动作电位的主要特征","心肌动作电位时程较长的主要原因之一","由Ca2+缓慢内流和少量 K+外流共同形成","形成的离子是 Na+缓慢内流","下列哪项不是心肌细胞平台期的特点 ()",{"answer":42,"createTime":5,"id":43,"options":44,"question":50,"source":29,"type":30},[],326543093,[45,46,47,48,49],"0 期主要是 Na+内流","1 期主要是 Cl-内流","2 期主要是 Ca2+内流与 K+外流","3 期主要是 K+外流","1 期主要是 K+外流","下列关于心室肌细胞动作电位离子基础的叙述,哪一项是错误的()",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":29,"type":30},[],326543094,[55,56,57,58],"Na+内流","Na+外流","Ca2+内流","K+外流E.Cl-内流","窦房结细胞动作电位 0 期去极化是由于()",{"answer":61,"createTime":5,"id":62,"options":63,"question":69,"source":29,"type":30},[],326543095,[64,65,66,67,68],"窦房结","心房肌","房室交界区","心室肌","普肯耶纤维","心脏的潜在起搏点有()",{"answer":71,"createTime":5,"id":72,"options":73,"question":79,"source":29,"type":30},[],326543096,[74,75,76,77,78],"有效不应期特别长","有相对不应期","有绝对不应期","有超常期","有低常期","心肌细胞兴奋性的特点是()",{"answer":81,"createTime":5,"id":82,"options":83,"question":86,"source":29,"type":30},[],326543097,[65,66,84,85,67],"左、右束支","蒲肯野纤维","心内传导最慢的部位是()",{"answer":88,"createTime":5,"id":6,"options":89,"question":17,"source":29,"type":30},[],[8,9,10,11,12],{"answer":91,"createTime":5,"id":92,"options":93,"question":100,"source":29,"type":30},[],326543099,[94,95,96,97,98,99],"可产生局部兴奋","阈上刺激能产生动作电位","Na","通道失活","此期相当于心室全收缩期舒张早期","此期时间较长远","对心室肌细胞有效不应期特征的叙述,错误的是 ()",{"answer":102,"createTime":5,"id":103,"options":104,"question":110,"source":29,"type":30},[],326543100,[105,106,107,108,109],"心肌是功能上的合胞体","心肌肌浆网不发达,Ca 2+ 贮存少","心肌肌浆网发达,Ca 2+ 贮存多","心肌的有效不应期较长","心肌有自动节律性,能自动产生节律性搏动","心肌细胞不会产生强直收缩的原因是()"]