Learn why phlegm happens and discover gentler, everyday ways to remove it without resorting to loud “uncle coughs”.

Cilia are outgrowths of the plasma membrane of eukaryotic cells that contain a specialised cytoskeleton. Motile cilia are present on multiciliated cells and use this cytoskeleton to move fluid ...

For a long time, almost all attention was on the motile cilia because their function was readily observable. But scientists, starting with Alexander Kowalevsky had reported the presence of single ...

Cilia are small hairs which beat to push the ... Parts of the model represent different parts of the respiratory system as shown here. The model, which is air tight, represents the thorax, and ...