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Experiments designed to examine the energy requirements of neurophysiological function were performed on isolated rabbit retina… Expand Transmembrane potentials, extracellular potassium activity, and intracellular sodium activity were determined during acute global… Expand 1. Effects of digitalis compounds on slow inward Ca current Isi) and contractile force were examined in ferret ventricular muscle… Expand The brain contains two distinct molecular forms of the (Na,K)-ATPase (sodium and potassium ion-stimulated adenosine… Expand 1. Under the influence of strophantidin, Purkinje fibres exhibit transient inward current (TI) which contributes to… Expand 1. Voltage clamp experiements studied the ionic basis of the strophathidin‐induced transient inward current (TI) in cardiac… Expand Following trains of impulses, sensory neurones in the C.N.S. of the leech show a prolonged hyperpolarization, which lasts for… Expand Abstract The mechanical responses (active and resting tension, d P d t , TPT) and ionic exchange characteristics (Ca, K, Na… Expand A long‐lasting hyperpolarization has been observed in sensory neurones of the C.N.S. of the leech following natural stimulation… Expand The contractile state of papillary muscles from hypertrophied and from failing right ventricles of cats with pulmonary artery… Expand