Intracranial Intradural Variations of the Cranial Nerves

This part of the study was performed on 60 human cadavers. After the cranial vault, the cerebrum, cerebellum, and brain stem removal, the cranial nerve courses and the cranial base were carefully examined. The variations of the abducent nerve were present in 48 cases and variations of the hypoglossal nerve in 17 cases. In four cases, the simultaneous variations of abducent and hypoglossal nerves were found. Anastomoses between the glossopharyngeal (n. glossopharyngeus) and vagus (n. vagus) nerves were present in four cases (6.6%). The results are shown in the tables, images, and schemes. Variations of other cranial nerves are very rare.