by dissecting very fine strands of the liver afferent nerves, in cats, it has been possible to record activity of single fibers during intraportal infusion of different test-solutions. Different fibers were found which responded specifically to increase in the intraportal volume, to change of the osmosis and of concentration of ions. The liver was found to have highly selective specific populations of receptors: mechano (volume)-, osmo-, Na+-sensitive and K+ sensitive receptors.
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