Table 1.
Dimensions of the VA and VVA (Measurements in mm).
| Specimen | VA Diameter* | VA Diameter** Long | VA Diameter** Short | Diameter of Branch 1 of the VVA | Diameter of Branch 2 of the VVA |
|---|---|---|---|---|---|
| 2R | 0.26 | 0.81 | 0.37 | 0.11 | 0.10 |
| 1526R | 0.17 | 0.75 | 0.30 | 0.13 | 0.05 |
| 1563L | 0.18 | 0.54 | 0.26 | 0.06 | 0.07 |
| 1563R | 0.14 | 0.83 | 0.30 | 0.06 | 0.09 |
| 1571X | 0.16 | 0.88 | 0.54 | 0.05 | 0.05 |
| Mean | 0.18 | 0.76 | 0.35 | 0.08 | 0.07 |
| SD | 0.04 | 0.12 | 0.10 | 0.03 | 0.02 |
*Diameter of the narrowest part of the VA (isthmus). **Diameter at internal aperture of the VA, shortest and longest distances. The branches 1 and 2 of the VVA were measured at a point nearest the VA. VA; vestibular aqueduct. VVA; vein of the vestibular aqueduct.