CNS Support Structures

Question 0

What is the skull?

Answer 0

Rigid bony chamber that contains the brain and facial skeleton, with foremen magnum at its base

Question 1

What structures make up the CNS?

Answer 1

Skull
Meninges
Ventricles
Cerebrospinal fluid
Blood-brain barrier
Blood supply

Question 2

What are meninges?

Answer 2

Membranes that envelop the brain

Question 3

What are ventricles?

Answer 3

Cavities or ventricles that are filled with cerebrospinal fluid and communicate with each other and the spinal cord canal.

Question 4

What is cerebrospinal fluid?

Answer 4

Provides mechanical support (cushions brain), controls brain excitability by regulating ionic composition p, aids in exchange of nutrients and waste products

Question 5

What is the blood-brain barrier?

Answer 5

Selective restriction of blood borne substances from entering the CNS; associated with capillary endothelial cells