Differentiation of the facial-vestibulocochlear ganglionic complex in human embryos of developmental stages 13&#8211;15

M. Bruska; K. Ulatowska-Błaszyk; M. Weglowski; W. Woźniak; A. Piotrowski

Vol 68, No 3 (2009)

Original article

Submitted: 2012-02-06

Published online: 2009-05-13

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Differentiation of the facial-vestibulocochlear ganglionic complex in human embryos of developmental stages 13–15

M. Bruska, K. Ulatowska-Błaszyk, M. Weglowski, W. Woźniak, A. Piotrowski

Folia Morphol 2009;68(3):167-173.

Vol 68, No 3 (2009)

ORIGINAL ARTICLES

Submitted: 2012-02-06

Published online: 2009-05-13

Abstract

A study was made on 18 embryos of developmental stages 13–15 (5^th week). Serial sections made in horizontal, frontal, and sagittal planes were stained with routine histological methods and some of them were treated with silver. In embryos of stage 13, the otic vesicle is at the rhombomere 5, and close to the vesicle is the facial-vestibulocochlear ganglionic complex in which the geniculate, vestibular, and cochlear ganglion may be discerned. These ganglia are well demarcated in embryos of stage 14. In the last investigated stage (15^th) the nerve fibres of the ganglia reach the common afferent tract.