Özet:

In this study; the length of the internal acoustic meatus, the diameters of internal acoustic opening and morphological variations of the fundus meatus acustici interni were investigated in 26 temporal bones (13 right and 13 left) from 13 cranium and 41 isolated temporal bones from different skulls. The average length of internal acoustic meatus (26 bone) was 7.6 ± 1.3 mm. In the 67 temporal bones, the average medio-lateral diameters of internal acoustic opening was 9.8 ± 2.0 mm, supero-inferior diameters was 4.3 ± 0.7 mm and antero-posterior diameters was 4.9 ± 0.8 mm. After obtaining the data from internal acoustic meatus, 33 isolated temporal bones were opened with tour in order to examine fundus of internal acoustic meatus and its variations. The average lenght of transvers crest was 5.1 mm. The transvers crest was either like a sharp crest (69.7 %) or flat edge (30.3 %). The vertical creast was either like plus sign and cross obliquely the tranvers crest (75.7 %) or situated between facial area and superior vestibular area (24.3 %)

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