Deuterosome

In cell biology, a deuterosome is a protein structure within a multiciliated cell (such as an epithelial cell of respiratory tract) that produces multiple centrioles.

Most cells in human body possess one primary cilium, a relatively small protrusion of the cell membrane that looks like a stick or a finger under the electron microscope. Primary cilium is typically used by the cell as a sensory organelle, or antenna. Some cells, however, have numerous cilia which they use to generate directed fluid flow. The examples include epithelial cells of the respiratory tract in which multiple cilia are used for mucus clearance, the oviduct, in which cilia help the egg migrate to the uterus, and others.