1》 CELLS POSSESS CILIA ON THEIR FREE SURFACE. 2》THEY BEAR MICROVILLI AT THE FREE ENDS TO DECREASE SURFACE AREA OF THE ORGAN. 3》 MUCUS SPREADS OVER THE EPITHELIUM IN ANY DIRECTION. 4》 IT IS PRESENT IN THE INNER SURFACE OF HOLLOW ORGANS LIKE BRONCHIOLES AND FALLOPIAN TUBES. 1.5K views01:56
