Central brain spaces {ventricle, brain}| are down middle, hold cerebrospinal fluid, and connect to spinal cord fluid tube. Beneath septum pellucidum, first two ventricles connect through hole to third ventricle, which is between right and left hypothalamus lobes. Tectum covers third ventricle in back. In front of third ventricle are septal and preoptic areas. Fourth ventricle is in hindbrain.
Fourth-ventricle aqueduct {cerebral aqueduct} is in midbrain.
Almost transparent tissue {septum pellucidum}, in cerebrum beneath corpus callosum, separates first and second ventricles.
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Date Modified: 2022.0225