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  • Title: Regulation of motor activity of omasum after blockade of vagus nerves.
    Author: Zieba D, Debowy J, Leroch Z, Wegrzyn T.
    Journal: Acta Physiol Pol; 1977; 28(5):475-81. PubMed ID: 596196.
    Abstract:
    In 3 sheep with subcutaneously exposed vagus nerves and with chronic large fistula of the rumen pharmacological analysis of the motor activity of omasum was carried out after blockade of vagus nerves. The contractions of omasal canal, reticulum and rumen were recorded by the baloon method. After blockade of the vagus nerves with anesthetics the proper pharmacological agents were administered in intravenous injections. In the light of the obtained results it was found that contractions of the omsal canal, persisting after vagal blockade, are independent of the influence of the autonomic system and they are probably due to myogenic automatism. It has been also demonstrated that both alpha and beta adrenergic receptors participate in regulation of the tonous of omasum musclular layers.
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