Structure: 6o5-10um long, 0.2um in diameter .. core: microtubules, 9X2+2 冷 basal body(基体): centrioles- connected with microtubules Function: swing to produce a forward-moving wave Distribution; epithelial cells of respiratory tract 内鞘 双联 微管 中央 微管 支臂 100m 纤毛横切面超微结构模式图20 Structure: ❖ 5-10um long, 0.2um in diameter ❖ core: microtubules, 9X2+2 ❖ basal body (基体): centrioles-connected with microtubules Function: swing to produce a forward-moving wave Distribution: epithelial cells of respiratory tract