Molecular structure of stereocilia. a. Electron micrograph of stereo-cilia from the epididymis. The cytoplasmic projections are similar to microvilli, but they are extremely long, x 20,000. b. Schematic diagram showing the molecular structure of stereocilia. They arise from the apical cell protrusions, having thick stem portions that are inter erzin fimbrin

fimbrin cytoplasmic bridge actin filaments oc-actinin apical cell protrusion actin filament stem erzin oc-actinin

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