Comparative Measurements of Cochlear Apparatus Micromeasurements of horizontal midmodiolar sections of temporal bones were performed to obtain the dimensions of the different cochlear partitions in the squirrel monkey, the cat, and the rat. The width of the basilar membrane and the tectorial membrane were larger in the apical turn than in the basal turn in ... Research Article
Research Article  |   June 01, 1968
Comparative Measurements of Cochlear Apparatus
 
Author Affiliations & Notes
  • Makoto Igarashi
    Baylor University College of Medicine, Houston, Texas
  • Robert G. Mahon, Jr.
    Baylor University College of Medicine, Houston, Texas
  • Shizuo Konishi
    Baylor University College of Medicine, Houston, Texas
Article Information
Research Articles
Research Article   |   June 01, 1968
Comparative Measurements of Cochlear Apparatus
Journal of Speech, Language, and Hearing Research, June 1968, Vol. 11, 229-235. doi:10.1044/jshr.1102.229
History: Received November 1, 1967
 
Journal of Speech, Language, and Hearing Research, June 1968, Vol. 11, 229-235. doi:10.1044/jshr.1102.229
History: Received November 1, 1967

Micromeasurements of horizontal midmodiolar sections of temporal bones were performed to obtain the dimensions of the different cochlear partitions in the squirrel monkey, the cat, and the rat. The width of the basilar membrane and the tectorial membrane were larger in the apical turn than in the basal turn in all three species. The thickness of the spiral ligament, the width of Reissner’s membrane, and the width of the stria vascularis were larger in the basal turn than in the apical turn. The cross-section areas of scala vestibuli and scala tympani in the three species were larger in the basal turn than in the other turns.

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