Similarly, the insects' circulatory system is profoundly different from mammals. The insect system consists of a simple tube, the dorsal vessel that runs the length of the body, and pushes the ...

In a world-first pilot study, researchers from the University of South Australia have used video footage of insects to extract their heart rates without touching or disturbing them.

"Leptophragmata cells are tiny cells situated like windows between the beetle's kidneys and the insect circulatory system, or blood.

John Tyrrell, On the Circulation of the Blood in Insects. [Abstract], Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London, Vol. 3 (1830 - 1837), p. 317 ...

"Leptophragmata cells are tiny cells situated like windows between the beetle's kidneys and the insect circulatory system, or blood.