1. 16 These nerves are twined together to form the vestibulocochlear nerve (eighth cranial nerve).

2. 6 The cerebellopontine angle segment and internal acoustic meatus segment paralleled the vestibulocochlear nerve.

3. 3 Objective:To provide anatomy base to increase the chance of maintaining the facial and vestibulocochlear nerve in the ectomy of vestibulocochlear neuroma(VN).