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Pathology > Blood Supply of the CNS > Flashcards

Flashcards in Blood Supply of the CNS Deck (5):
1

Why are arteries in the CNS more susceptible to HTN related injury?

They have quick transitions from large to small - low pressure to high pressure

2

What is unique about the BBB?

The capillary endothelial cells adhere to each other with tight junctions and astrocyte end feet surround the endothelium

3

How is the blood supply of the brain regulated?

- Metabolic
- Myogenic

4

What is the function of the BBB?

Restricts ionic/fluid movements, supplies essential nutrients,
mediates efflux of waste or toxic products

5

What is the composition of the BBB?

Capillary endothelial cells - pericytes, astrocytes and neuronal processes

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