Histologically, deafness can be identified by examining the cochlea for several markers:
1. Hair Cell Loss: A reduced number of hair cells in the cochlear epithelium is a key indicator. 2. Degeneration of Stria Vascularis: The stria vascularis is responsible for maintaining the ionic composition of the cochlear fluid. Degeneration of this structure can disrupt cochlear function. 3. Spiral Ganglion Neuron Loss: The spiral ganglion neurons transmit auditory information from the hair cells to the brain. Loss of these neurons can indicate auditory nerve damage.
