2020 April Fools' Case: Normally we'd prank you with this but given the current COVID-19 crisis we decided just to release it straight up without trying to trick anyone. Hopefully you can at least still enjoy a little laugh at this difficult time - view case

Ventricular system

The ventricular system in the brain is composed of CSF-filled ventricles and their connecting foraminae. CSF is produced by ependymal cells which line the ventricles. They are continuous with the central canal. Ventricles contain around 1/5 of normal adult CSF volume, which is around 20-25 ml.

The ventricular system consists of:

The interconnections between the ventricles occur through the following:

Both the cisterna magna and the cerebellopontine cistern are in the subarachnoid space. This space is continuous with the subarachnoid space around the cord down to the level of the cauda equina.


Embryologically, ventricles originate from the central lumen of the neural tube and the cerebral vesicles to which it gives rise.

Anatomy: Brain

Anatomy: Brain

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Article information

rID: 5846
Section: Anatomy
Synonyms or Alternate Spellings:
  • Cerebral ventricles
  • Ventricles of the brain

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Cases and figures

  • Figure 1
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  • Figure 2: ventricles superimposed on brain
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  • Figure 3: coronal brain through 3rd ventricle
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  • Figure 4: brain (sagittal section)
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  • Figure 5: directional CSF flow
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