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http://dx.doi.org/10.5407/JKSV.2011.9.4.069

In vivo visualization of liquid-feeding phenomena of a butterfly  

Lee, Seung-Chul (포항공과대학교 기계공학과)
Kim, Bo-Heum (포항공과대학교 생체유체연구단)
Lee, Sang-Joon (포항공과대학교 기계공학과)
Publication Information
Journal of the Korean Society of Visualization / v.9, no.4, 2011 , pp. 69-73 More about this Journal
Abstract
Butterflies have been known to suck viscous liquids through a long, cylindrical proboscis using the large pressure difference formulated by the cyclic expansion and contraction of a muscular pump located inside their head. However, there are few studies on the liquid-feeding phenomena in a live butterfly, because it is hard to observe the internal morphological structures under in vivo condition. In this study, the dynamic motion of the pump system in a butterfly was in vivo visualized using synchrotron X-ray micro-imaging technique to analyze the liquid-feeding mechanism. The period of the liquid-feeding process is about 0.3sec. The expansion stage is about two times larger than the contraction stage in one cycle. The cyclic variation of pump volume generate large negative suction pressure and the pressure difference inside the long proboscis of a butterfly is estimated to be larger than 1atm.
Keywords
Butterfly; Muscular pump; X-ray imaging;
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Times Cited By KSCI : 1  (Citation Analysis)
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