Motile Cilia Go With the Flow

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Two ciliated cells showing cilia (green) and basal bodies (red). All the cilia beat in the same direction to generate directed fluid flow. Credit: Brian Mitchell Salk Institute
Two ciliated cells showing cilia (green) and basal bodies (red). All the cilia beat in the same direction to generate directed, fluid flow. Credit: Brian Mitchell, Salk Institute

Cilia, tiny hair-like structures that propel mucus out of airways, have to agree on the direction of the fluid flow to get things moving. Researchers at the Salk Institute for Biological Studies discovered a novel two-step mechanism that ensures that all cilia beat in unison.


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