Ventricles of the brain
Ventricles
Flow of Cerebrospinal fluid
- Production
- Normal volume 150mls; ~500mls produced/day
- Sites: (1) Choroid plexus - 70% (2) Blood vessels lining ventricular walls - 30%
- Circulation
- Lateral ventricles
- > Interventricular foramen of Munro into 3rd ventricle
- > Aqueduct of Silvius to 4th ventricle
- > (1) Central canal via 4th ventricle (2) > Central foramen of Magendie and Lateral foramen of Luschka to subarachnoid space
- Absorption
- Sites (1) Arachoid villi - 80% (2) Spinal nerve roots - 20%
