![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbcgJ6m4TLOKnEmZTqf-SvTOYw-K3vSoFOEAysH1HztGSxC0eha2ApMQXUMSRSn7XKbH4zNyNAVxel83_dyLZJMrLR4oL1LQbs1P7kPuP8nzqUDd_Ef652_qck8EEmFaHRlfHUxQ/s400/indianheart-thumb-530x398-19666.jpg)
This artificial heart is based on a cockroach heart. Seems that a cockroach has a twelve chambered heart compared to our four chambered heart. This built in redundancy helps to protect them from keeling over with angina as they are about to invade my pantry.
I was trying to figure out how this worked from the picture and it made no sense to me. The picture looks like a tennis ball with an aquarium pump inside of it. So, I went looking on the web for a diagram of a cockroach heart. I was unable to find a clear picture or diagram of the little critters ticker. I did eventually find this diagram of a insect heart that I think is similar to what you might find inside a cockroach. Still not clear to me how they can survive the failure of one chamber when they are in sequence like this?
Shoot me a note if anybody knows of a better diagram, picture or explanation.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1EQgJU1TbWWvnlDpI-eVPGUkIx9vaasyIGqRHBNS9GURjFbIeVcVt4S-SGtnsiV6Yyizzj3H3_kl_p-2Hivl-yyPi7fZSRJZpfGFpJ9AS8Kzd9MQm8g2DjgSppbBhappexTPUug/s400/insect_heart1.gif)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7m1N5_vLWcdwcn3HiId-h3s5Y9-99jGsixIL3bNsXxByLSoGGeCOslDxWy_RhVfOlc0MBSqugmmIEW3KO3UdsUbw9bOVwgwHJvll08tniLZMnXYI-a9hSfWILVeqc932VBYlWkA/s400/insectcirc.gif)
[via dvice]
[Image of artifical heart captured from dvice: http://dvice.com/archives/2009/06/indian-artifici.php] [Two images of insect heart captured from mathphysicschemistrybiology.com/
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