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Figure 4: Scanning electron micrographic study of each group in the same frequency area (at 32 KHz) demonstrates damage and missing (asterisks) of outer hair cells in the cochlea of unplugged ear of G3 and noise control (G4). Bilaterally plugged ears (G2) and unilaterally plugged ear of G3 did not show ultrastructural damage of stereocilia or missing of outer hair cells at 32 kHz area of the cochlea

Figure 4: Scanning electron micrographic study of each group in the same frequency area (at 32 KHz) demonstrates damage and missing (asterisks) of outer hair cells in the cochlea of unplugged ear of G3 and noise control (G4). Bilaterally plugged ears (G2) and unilaterally plugged ear of G3 did not show ultrastructural damage of stereocilia or missing of outer hair cells at 32 kHz area of the cochlea