A new look at the comparative physiology of insect and human hearts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F12%3A00384155" target="_blank" >RIV/60077344:_____/12:00384155 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0022191012001035#" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0022191012001035#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jinsphys.2012.04.014" target="_blank" >10.1016/j.jinsphys.2012.04.014</a>

Result language
angličtina
Original language name
A new look at the comparative physiology of insect and human hearts
Original language description
Recent electrocardiographic (ECG) studies of insect hearts revealed the presence of human-like, involuntary and purely myogenic hearts. Certain insects, like a small light-weight species of hoverfly (Episyrphus balteatus), have evolved a very efficient cardiac system comprised of a compact heart ventricle and a narrow tube of aorta, which evolved as an adaptation to sustained hovering flights. Application of thermo-cardiographic and optocardiographic ECG methods revealed that adult flies of this speciesuse the compact muscular heart chamber (heart ventricle) for intensive pumping of insect "blood" (haemolymph) into the head and thorax which is ringed all over with indirect flight musculature. The recordings of these hearts revealed extremely high, record rates of forward-directed, anterograde heartbeat (up to 10 Hz), associated with extremely enhanced synchronic (not peristaltic) propagation of systolic myocardial contractions (32.2 mm/s at room temperature). The relatively slow, back
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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