Blood Vessels Flashcards

1
Q

Arteries

A
  • oxygenated blood
  • carry blood away from heart
  • small lumen
  • thick elastic fibres
  • endothelium
  • thick outer wall
  • thick inner layer of muscle and elastic fibre
  • narrow central lumen
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2
Q

Capillaries

A

Deoxygenated/oxygenated blood
- small. One cell thick
- exchange substances with cells
- take away waste products
- single cell thick
-They joint into larger vessel veins
- pores in the walls to allow substances to get in and out of the blood

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3
Q

Veins

A

Oxygenated blood
- carry blood into the heart
- large lumen
- thin walls
- smooth muscle
- they have valves which prevent blood from flowing backwards making sure it always gets to the heart
- elastic fibres

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