The movement of human spermatozoa in cervical mucus.
The movement of human spermatozoa in cervical mucus.
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人类精子在宫颈粘液中的运动。
DOI：
10.1530/jrf.0.0530259
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
T. R. Pritchett
中科院分区：
文献类型：
--
作者：
D. Katz;R. N. Mills;T. R. Pritchett
用高速电影显微摄影技术研究了自由游动精子的运动特性。在21摄氏度，鞭毛节拍频率是更高的中期人类宫颈粘液比在本地精液或台氏液;节拍形状不同，拥有减少的幅度和波长。虽然精子在粘液中游得更直，但在三种介质中的渐进游泳速度没有差异。游泳速度和节拍频率线性相关的精液和台氏，但在粘液的线性不太确定。在37摄氏度的中期宫颈粘液中，搏动频率和游泳速度大于21摄氏度，但轨迹同样笔直，每次搏动的游泳距离（动力学效率）没有差异。
Movement characteristics of freely swimming spermatozoa were studied with high-speed cinemicrography. At 21 degrees C, flagellar beat frequency was higher in midcycle human cervical mucus than in native semen or Tyrode's solution; the beat shape differed, possessing diminished amplitude and wavelength. Although the spermatozoa swam straighter in the mucus, the progressive swimming speeds did not differ in the three media. Swimming speed and beat frequency were linearly related in semen and in Tyrode, but in mucus the linearity was less certain. In midcycle cervical mucus at 37 degrees C, beat frequencies and swimming speeds were greater than at 21 degrees C, but the trajectories were equally straight, and the distances swum per beat (kinetic efficiencies) did not differ.