Альдостерон increases реабсорбцию ions of sodium and secretion of ions of potassium and hydrogen cages nephritic канальцев. Simultaneously increases реабсорбия waters which is soaked up passively on the osmotic gradient created by ions Na + that leads to reduction диуреза. The hormone reduces реабсорбцию calcium and magnesium in проксимальных departments канальцев. The higher nervous activity is a set unconditional and conditioned reflexes, and also the higher mental functions which provide adequate behaviour in changing natural and social conditions. For the first time the assumption of reflex character of activity of the higher departments of a brain has been stated by I. M.Setchenov that has allowed to extend a reflex principle and to mental activity of the person. Idea I.M. Setchenov have received experimental acknowledgement in I. P.Pavlova's works which has developed a method of an objective estimation of functions of the higher departments of a brain - a method of conditioned reflexes. voltaren canada For studying секреторной and motor functions of a zheludokno-intestinal path at the person are used зондовые and беззондовые methods. Zondovye methods (stomach sounding, 12-perstnoj guts) allow to define volume and secret structure as on an empty stomach, and after stimulation of digestive glands by food and various pharmacological preparations (гистамином, пентагастрином at an estimation of gastric secretion and serno-sour magnesia at research желчевыведения). Last years are widely used эндоскопические methods of research of a stomach and an intestines which allow along with visual supervision over a mucous membrane to receive биопсийный a material.