Human sperm steer with second harmonics of the flagellar beat

@article{Saggiorato2017HumanSS,
  title={Human sperm steer with second harmonics of the flagellar beat},
  author={Guglielmo Saggiorato and L. Alvarez and Jan F. Jikeli and U. B. Kaupp and G. Gompper and J. Elgeti},
  journal={Nature Communications},
  year={2017},
  volume={8}
}
  • Guglielmo Saggiorato, L. Alvarez, +3 authors J. Elgeti
  • Published 2017
  • Medicine, Biology, Chemistry, Physics
  • Nature Communications
  • Sperm are propelled by bending waves traveling along their flagellum. For steering in gradients of sensory cues, sperm adjust the flagellar waveform. Symmetric and asymmetric waveforms result in straight and curved swimming paths, respectively. Two mechanisms causing spatially asymmetric waveforms have been proposed: an average flagellar curvature and buckling. We image flagella of human sperm tethered with the head to a surface. The waveform is characterized by a fundamental beat frequency and… CONTINUE READING

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