This is the fluid that fills the ventricles and has two main functions:

- Shock absorber (gives the brain room to move inside of the skull).
- Allows for exchange of nutrients to the brain from blood vessels. 

Cerebrospinal fluid (CSF)

This is the membrane located in the lateral ventricles which produces cerebrospinal fluid which then flows to the rest of the ventricles. 

Choroid plexus

These are fluid-filled spaces throughout the brain.

- cerebrospinal fluid
- choroid plexus
- lateral ventricles
- third ventricle
- fourth ventricle 



Ohio State University, Columbus

- Three protective membranes
- Cerebral ventricles 
- Vascular system

Brain support systems

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

The brain and spinarl cord are encased in membranes called the meninges. The dura mater is a tough outer part, the arachnoid is a webby substance that suspends the brain in cerebrospinal fluids, and the pia mater is the delicate membrane that adheres to the surface of the brain.

Protective membranes of the brain

Cerebral ventricles 

The vascular system is the complex web of blood vessels that work to supply all the parts of the brain with blood so the brain can keep functioning. 

There are a few major arteries to take note of: 
- carotid arteries
- anterior cerebral arteries
- middle cerebral arteries
- posterior cerebral arteries
- vertebral arteries
- basilar artery
- circle of Willis


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