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NCI Dictionary of Cancer Terms

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NCI Dictionary of Cancer Terms



ventricle  listen  (VEN-trih-kul)

  A fluid-filled cavity in the heart or brain.

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Drawing of brain anatomy showing the brain stem, pons, medulla, spinal cord, cerebellum, cerebrum, meninges, ventricles (fluid-filled spaces), and skull.
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Drawing of the inside of the brain showing ventricles (fluid-filled spaces), choroid plexus, hypothalamus, pineal gland, pituitary gland, optic nerve, brain stem, cerebellum, cerebrum, medulla, pons, and spinal cord.