Embryology of the ear

Abstract

The embrionary origin of the internal ectodermic ear and its developing to reach the embrion's age are mentioned, enfasizing that is the single organ that doesn't change after the fetal life.
Also it describes the origin of the sound's conductor device, being the mesoderm its bigger component represented in the branchials ares and in the first the endodermic cover helps only to the formation of the timpanic box and the Eustachian tube.