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  • Title: [Activation mechanisms of the contractile cells of cerebral arteries and veins].
    Author: Azin AL, Plekhanov IP, Orlov RS, Vishnevskiĭ GA.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1977 Nov; 63(11):1567-73. PubMed ID: 590572.
    Abstract:
    In isolated strips of internal carotid artery and middle cerebral artery in humans, spontaneous electric and contractile activities were revealed. Low (35 degrees C) and high (40--41 degrees C) temperatures inhibited the development of spontaneous contractions. Under depolarization of the cells' membranes by potassium ions, no development of spontaneous electric or contractile waves occurred, while contractions of the tonic type were observed in arterial preparations. No spontaneous contractions were found in the cerebral veins.
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