"Impulses travel along the central auditory pathway from the cochlear nerve to the medulla to the cerebral cortex. Hearing may be impaired by disease, injury, or old age; some disorders, including deafness, may be congenital." 脉冲沿着中枢听觉通路前进,从耳蜗神经由延髓到大脑皮质。听觉可能因为疾