Cardiac-like behavior of an insect flight muscle
نویسندگان
چکیده
منابع مشابه
Cardiac-like behavior of an insect flight muscle.
The synchronous wing depressor muscles of the hawkmoth Manduca sexta undergo large amplitude motions at lengths that lie entirely on the ascending region of their twitch length-tension curve. Moreover, these muscles bear a striking functional resemblance to mammalian cardiac muscle in both the shape of their length-tension curve and in their working length range. Although operation on the ascen...
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The fine structure of fibrillar flight muscle of the mature adult beetle Tenebrio molitor is described. Although the very high frequency of contraction of fibrillar muscle has previously been in part accounted for as the result of mechanical specialization of the wing-bearing segment rather than of a correspondingly high rate of motor impulse supply, the problem of the nature of the pathway by ...
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Recent studies have demonstrated that nucleotide triphosphates, other than ATP,’ function in biological systems in a manner analogous to that of ATP. These purine and pyrimidine ribotides are now, known to serve as coenzymes in the biosynthesis and interconversion of hexose phosphates (l-3)) in the formation of phospholipides (4)) and as phosphate donors or acceptors in carboxylation reactions ...
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Insects, as a group, have been remarkably successful in adapting to a great range of physical and biological environments, in large part because of their ability to fly. The evolution of flight in small insects was accompanied by striking adaptations of the thoracic musculature that enabled very high wing beat frequencies. At the cellular and protein filament level, a stretch activation mechani...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2004
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.01039