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A Beetle Flight Muscle Displays Leg Muscle Microstructure.
Abstract In contrast to major flight muscles in the Mecynorrhina torquata beetle, the third axillary (3Ax) muscle is a minor flight muscle that uniquely displays a powerful mechanical function despite its considerably small volume, ∼1/50 that of a major flight muscle. The 3Ax muscle contracts relatively slowly, and in flight strongly pulls the beating wing to attenuate the stroke amplitude. This attenuation leads to left-right turning in flight or wing folding to cease flying. What enables this small muscle to be so powerful? To explore this question, we examined the microstructure of the 3Ax muscle using synchr...
Source: Biophysical Journal - September 19, 2016 Category: Physics Authors: Shimomura T, Iwamoto H, Vo Doan TT, Ishiwata S, Sato H, Suzuki M Tags: Biophys J Source Type: research