Cerebrospinal Fluid
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Cerebrospinal Fluid

Vascular Supply Of Head And Neck

General Anatomy

Cerebrospinal fluid (CSF)

  1. CSF is present in the ventricular system of the brain and in the subarachnoid space around the brain and spinal cord.
  2. The CSF is mainly formed by the choroid plexuses of lateral ventricles and lesser amounts by the choroid plexus of 3rd and 4th ventricles.
  3. The total quantity of CSF is about 150 ml. It is formed at the rate of 200 ml/hr or 500 ml/day. The normal pressure is 10 - 60mm of H2O.

Functions of CSF

  1. Protective
  2. Nutritive
  3. A pathway for excretion from the CNS.

Applied Anatomy of CSF

CSF rhinorrhea is seen in naso ethmoidal # and in Lefort II and III # associated with comminuted cribriform plate of ethmoid. The mixed blood and CSF leaking from the nose produces a tramline effect on the face and a halo effect on the pillow and sheets.

Image of CSF collected

Image of CSF circulation

Image of MRI showing pulsation of CSF



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