Human bodies have some built-in systems to care for themselves. The cells that line our lungs, nose, brain and reproductive system have cilia, which are tiny, hair-like structures designed to sweep out fluids, cells and microbes to stay healthy. But the mechanisms behind their motion are not well understood.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2CJ4MvZ
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