ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Human brain ventricles. Coloured 3D computed tomography (CT) scan of the ventricles (orange) of a normal human brain, seen from the front, combined with a coronal magnetic resonance imaging (MRI) angiography scan of the brain. Cerebrospinal fluid (CSF) circulates in the ventricles and serves to cushion the brain and the spinal cord. This is the brain of a 38-year-old man.
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