Section 3
Protection of the Brain
Book
Version 29
By Boundless
By Boundless
Boundless Anatomy and Physiology
Physiology
by Boundless
3 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/1836/square/blood-brain-barriere.jpeg)
Blood-Brain Barrier
Tight junctions present in the blood-brain barrier separate circulating blood from cerebrospinal fluid, regulating diffusion into the brain.
![Thumbnail](../../../../../../figures.boundless-cdn.com/16179/raw/gray769-en.jpg)
Cerebrospinal Fluid and Its Circulation
Cerebrospinal fluid is a clear fluid that acts as a cushion for the brain and maintains overall central nervous system homeostasis.
![Thumbnail](../../../../../../figures.boundless-cdn.com/32583/square/ggy5m4ktsdgiqczqtdgt.jpg)
Ventricles
The ventricular system is a set of hollow cavities in the brain filled with cerebrospinal fluid.