2. 首页 > 题库四 >
  2. 问题

正常人心率超过180次／分时，心输出量减少的原因主要是

7 查阅

正常人心率超过180次／分时，心输出量减少的原因主要是

A.快速射血期缩短

B.减慢射血期缩短

C.快速充盈期缩短

D.心室肌氧气供应不足

参考答案:

答案：快速充盈期缩短

相关问题:
  • 心室肌的有效不应期较长，一直持续到
  • 心室肌细胞是否具有兴奋性的前提是Na+通道是否处于
  • 下列关于心室肌细胞Na+通道的描述，哪一项是错误的
  • 外周阻力和心率不变而搏出量增大时，动脉血压的变化主要是
  • 心室肌细胞1期复极的离子机制是
  • 左心室内压最高的是
  • 心室功能减退病人代偿期射血分数下降的原因是
  • 心率过快时，心输出量减少的主要原因是
    • 随便看看:
  • 健康养生
  • 亲子
  • 胎教
  • 孕妇健康
  • 中药百科
  • 心理

    • Ta老师-周边问题

    1.
    The Album Bad has earned Michael a rec
    2.
    Michael Jackson was the youngest of th
    3.
    Pop music is actually a genre of popul
    4.
    On December 8, 1980, Lennon was assass
    5.
    In 2008, the Beatles topped Billboard
    6.
    The Beatles, a band from Liverpool in
    7.
    What has made Jazz different from any
    8.
    Jazz originated in black communities i
    9.
    It was once said that the three things
    10.
    Broadway refers to the famous street i
    11.
    During the Great Depression of the 193
    12.
    In the 1920s Denmark Street in London
    13.
    Compared with wedding ceremony in Brit
    14.
    When the groom lifts the veil and kiss
    15.
    In the UK, on the 29th of February in
    16.
    The appetizer is always served as the
    17.
    In a western dinner, the most importan
    18.
    Where to sit in a western dinner is of
    19.
    The ill and physically unable people c
    20.
    Since Americans don’t have inherited
    版权所有,保留一切权利！© 2018-2023 Ta老师 Talaoshi.com 湘ICP备18019507号-1 联系QQ:469958。