Ciliated epithelium is
found lining the air passages and their ramifications such as the frontal and
maxillary sinuses. It also lines the uterine tubes or oviducts and part of the
uterus and the ventricles of the brain.
Ciliated cells are
like columnar cells in shape, but they have in addition fine hair-like processes
attached to their free edge. These processes are called cilia. The ciliary
processes keep up a continual movement directed towards the external opening.
This movement has been likened to the movement seen in afield of corn, blown in
one direction by the wind. In the respiratory passages the constant movement
prevents dust, mucus, etc. entering the lungs, and in the uterine tubes the
movement conveys the ovum into the uterus.
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