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Measures of Heart and Ventilatory Rates in Freely Moving Crayfish
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Measures of Heart and Ventilatory Rates in Freely Moving Crayfish

Published on: October 15, 2009

Neurohemal organ extracts effect the ventilation oscillator in crustaceans

A Berlind

    The Journal of Experimental Zoology
    |January 1, 1976
    PubMed

    Abstract:

    Extracts of the pericardial organs of crabs injected into intact animals cause an increase in the frequency of scaphognathite beating. The active factor is not dopamine of 5-hydroxytryptamine, which are present in pericardial organs; it is probably a peptide. The factor may represent a hormonal mechanism of coordinating heart rate and ventilation.

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