Our hearts may have brains:
“Scientists from the Karolinska Institutet in Sweden and Columbia University in the US have now uncovered a startling level of complexity among the neurons encasing the zebrafish’s heart, challenging existing theories on how the organ’s pulse is maintained in animals like ourselves…humans and zebrafish have surprisingly similar cardiovascular physiology.”
https://www.sciencealert.com/your-heart-has-its-very-own-brain-and-its-surprisingly-complicated
[#]Science #Biology #Physiology
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