[The early development of the labyrinth (author's transl)].

The developmental kinetics of the inner ear of 2- to 30-mm embryos are examined. The development of the inner ear can be shown as being constructively correlated with the development of the brain and thus being an ontogenic requisite for the structural development of the embryo. The development kinetic findings, as shown here, demonstrate that the functions of the inner ear have already started during its development and differentiation.