The most common nerve in the neck from which schwannoma arises -

Schwannomas or neurilemmomas arise from cranial and spinal nerve roots. An acoustic schwannoma or acoustic neuroma is an intracranial schwannoma located within the internal auditory canal originating from the vestibular poion of the acoustic nerve. Intraspinal schwannomas are found as intradural tumors in the thoracic region. In the peripheral nerves, they occur as a solitary nodule on any sheathed sensory, motor, or autonomic nerve. Multiple schwannomas are uncommon and occur in von Recklinghausen's disease. Textbook of pathology Harsha Mohan 6th edition page no 893