There are two types of receptors in the 8th and vestibular inner ear, respectively. The inner ear and vestibular part of the inner ear are distinguished. The evolutionary age is vestibular part of the inner ear The auditory nerve develops later. The outer and middle ear begins to develop in the 5th week of uterine development from the 1st and 2nd slits. By the time of birth, the fetus has a tympanic cavity. completely formed with six walls Its lumen is filled with migzoite tissue.

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