The Schreiner Phenomenon in the Light of New Investigations

Abstract

The authors have confirmed the observation by Schreiner that the isotope from the perilymph of the first ear passes to the perilymph of the second ear and its activity is greater than the activity of cerebrospinal fluid in the cisterna magna and serum. At the same time, they found that the isotope migrates by way of the subarachnoid spaces and cisterns of the base of the cranium. The low activity of the cerebrospinal fluid in the cisterna magna was probably due. to the fact that the fluid in the cisterna magna came chiefly from the IVth ventricle, which is bypassed by the isotope introduced into the perilymph of the first ear, on its way through the cisterns of the base of the cranium. The low activity of the serum is connected with the small surface of exchange.