Cilia drive fluid flow in development and physiology, but this requires that all cilia in a tissue orient the same way. Earlier studies indicated that both planar cell polarity (PCP) signalling ...

Cilia are small hairs which beat to push the mucus back up the trachea so it can be swallowed and destroyed in the stomach. Clean air then enters the two bronchi, one bronchus going to each lung.

They provide nanometer-scale views of all the cells and structures in a volume of tissue—including cilia. "Every time you look into these large-scale volume data sets, you are seeing new biology ...