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Acta Anat (Basel) ; 159(1): 25-9, 1997.
Article in English | MEDLINE | ID: mdl-9522894

ABSTRACT

A silicone impression method to study the anatomy of the round window region was used in 102 temporal bones belonging to individuals aged from 4 months of fetal life to 3-year-old children as well as adults. A total of 2,142 measurements of the round window, oval window and round window fossula was made in the molds. The data demonstrate that the round window shows a diameter from 1.21 mm (average for the short axis) to 1.74 mm (average for the long axis) and the circular shape was present in 55% of the adult temporal bones and in 18.18% of the fetal and infantile ones. The adult dimensions of the measured structures are reached during fetal development.


Subject(s)
Fetus/embryology , Round Window, Ear/embryology , Round Window, Ear/growth & development , Silicone Elastomers , Temporal Bone/embryology , Adult , Aging/physiology , Cephalometry , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Morphogenesis
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