MRI image showing cerebrospinal fluid washing in and out of the brain during sleep.
More:
https://www.bu.edu/articles/2019/cer...-during-sleep/
Previously:
Euthanasia coaster - photos
Heart patient coughs up intact cast of bronchial tree - photo
Blood flow visualized - GIF
Kidney stone under electron microscope - photo
X-ray of a dog eating food - GIF
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