The cilium, referred to as the cilia for plural are short hair-like filaments found in the tissue cells of eukaryotic cells. Within the cilia is a cytoskeleton referred to as the axoneme. The cilia can either be motile or non-motile.
The non-motile cilia are called the primary cilia and serves as sensory organelles. While the motile cilia are the ones present on the cell surface. The function of the cilia is to help in the movement of the cell and in the movement of the fluids around the surface of the cell. The Motile cilia are typically found in the lungs and middle ear and the respiratory tract. In the respiratory tract, the motile cilia help in the easy movement of mucus allowing for breathing to be easy.
The cilia contains smaller proteins which are referred to as the tubulin which are manufactured within a cell and then transferred to the surface of the cell.
References:
Boiology Dictionary . (2017, June 25). Cilium. Retrieved from https://biologydictionary.net/cilium/
The Editors of Encyclopaedia Britannica. (2019, November 19). Cilium. Retrieved from https://www.britannica.com/science/cilium
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