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Journal of comparative physiology

, Volume 81, Issue 1, pp 53–55 | Cite as

The hydraulic mechanism of labial extension and jet propulsion in dragonfly nymphs

  • Jens Olesen
Article

Summary

The pressure waves responsible for the labial extension and jet propulsion in dragonfly nymphs are produced by the contraction of several muscles on both sides of the abdominal diaphragm. The duration and intensity of muscular activity differ in the two acts (Fig. 1).

Keywords

Pressure Wave Muscular Activity Labial Extension Dragonfly Nymph Hydraulic Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag 1972

Authors and Affiliations

  • Jens Olesen
    • 1
  1. 1.Zoological LaboratoryUniversity of CopenhagenDenmark

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