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cerebral aqueduct
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Labeled anatomical diagram of the human brain in sagittal section, medial view, showing internal structures such as the corpus callosum, cerebellum, ventricles, brainstem, and other key regions.
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cerebral aqueduct

anatomy
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Labeled anatomical diagram of the human brain in sagittal section, medial view, showing internal structures such as the corpus callosum, cerebellum, ventricles, brainstem, and other key regions.
left cerebral hemisphere of the human brain Medial view of the left hemisphere of the human brain.

The cerebral aqueduct, also known as the aqueduct of Sylvius, is a canal within the midbrain that connects the third and fourth ventricles of the brain. This passageway is crucial for the flow of cerebrospinal fluid (CSF). CSF is a clear liquid that circulates throughout the brain and spinal cord, providing cushioning and maintaining stable pressure within the skull.1234

Obstruction of the cerebral aqueduct can lead to a buildup of CSF, a condition called hydrocephalus. This blockage can be congenital or acquired due to factors like tumors or meningitis. Hydrocephalus can cause increased intracranial pressure, leading to symptoms such as headaches, dementia, and vomiting.52

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5 Britannica Sources
  1. human nervous system - Cerebral ventricles
  2. cerebrospinal fluid
  3. cerebrospinal fluid
  4. nervous system disease - Raised or decreased intracranial pressure
  5. hydrocephalus

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