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May 1967

The Vestibular System: Anatomic Considerations

Author Affiliations

Iowa City; Madison, Wis
From the Department of Otolaryngology and Maxillo Surgery, College of Medicine, the University of Iowa (Dr. Anson), and the Department of Anatomy, University of Wisconsin, Madison (Drs. Harper and Winch).

Arch Otolaryngol. 1967;85(5):497-514. doi:10.1001/archotol.1967.00760040499006

THE PRESENT article, like the paper presented on the program of the sectional meeting, is intended to provide a morphological basis for the several discussions of surgical technique. The contained information constitutes a review of pertinent studies published by the senior author and his colleagues, together with new observations relevant to the problems of this symposium.

Materials and Methods  The observations hereinafter recorded and the selection of illustrations are based on a study of approximately 200 series of sections, on three reconstructions prepared from representative series, and on dissections of 250 temporal bones. Some of these specimens were unembalmed; others had been freed of soft tissues (these being skeletal specimens).The dissection shown in Fig 1 demonstrates the orifices in the fundus of the internal acoustic meatus for passage of the divisions of the acoustic nerve (VIII) and the trunk of the facial nerve (VII). The reconstruction pictured in Fig

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