The Central Nervous System: Brain Ventricles and BTB

There are four ventricles found in the brain Which are?

Two lateral ventricles

The Third Ventricle

The Fourth Ventricle

CSF (Cerebral cranial fluid) is a clear colorless liquid that?

Circulates in the ventricles

Within the Brain and Canal of the spinal canal are cavities and expansions where?

Cerebral spinal fluid can flow

The function of the CSF is?

It surrounds and bathes the brain and spinal cord

The CSF has three important functions Which are?

Buoyancy

Protection

Environmental Stability

An important function of the CSF is [Buoyancy] which?

Brain floats in CSF

An important function of the CSF is [Protection] which?

Provides a liquid cushion

An important function of the CSF is [Environmental Stability] which?

Brings and removes molecules to brain

The CNS is kept away from the general circulation by the?

Blood-Brain Barrier (BTB)

Blood-Brain Barrier (BTB) strictly regulates what can enter the interstitial fluid of the?

Brain

(BTB) Formed by tight junctions made by astrocytes surrounding the?

vascular system

(BTB) is Not found in all parts of CNS and is missing in?

choroid plexus, hypothalamus, and pineal gland