<prompt> Winslows test was once used to detect the stoppage of :Brain functionLiver functionRespirationCirculation  <response>: WINSLOW TEST- It involves keeping a small pot containing water or mercury over the thoraco-abdominal region just at or below xiphisternum.- A ray of light was allowed to fall over the liquid. If the respiration was taking place, the ray of light over the surface of the liquid would appear to move. 