Ventricular system

Andrew Murphy and Dr Jeremy Jones et al.

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.

Major CSF production comes from choroid plexus found in the lateral, third and fourth ventricles of the brain which are highly vascularized epithelial tissue masses 3


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

Anatomy: Brain

Anatomy: Brain

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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