the important criteria which must be considered in order to preserve cochlear function when extirpating acoustic neurinomas are an anatomically intact nerve , the origin of the tumour and its direction of spread , further more the shape , location and course of the 8th nerve components , the quality of preoperative cochlear nerve function , the pattern of vascularization of the statoacoustic nerve and the inner ear , and lastly , but not least a possible infiltration of the vestibular and/or cochlear nerves by the tumour itself .
C0001162
statoacoustic nerve
C0009201
cochlear nerves