Cochlea from Inner Ear. Color-enhanced SEM of the inside of a guinea pig inner ear showing the hearing organ, or cochlea. Running along the spiral structure are rows of sensory cells which respond to different frequencies of sound. The whole organ is just a few millimeters long.
Inner ear hair cells. Coloured scanning electron micrograph (SEM) of sensory hair cells from the organ of Corti, in the cochlea of a mammalian inner ear. Each V-shaped arrangement of hairs lies on the top of a single cell.