ARTERIES

• COMPARE MUSCLE LAYER OF ARTERIES TO VEINS?

  thicker
• WHY ARE ARTERY MUSCLE LAYERS THICKER THAN VEIN?

  allows for constriction and dilation to control volume of blood
• COMPARE ELASTIC LAYER OF ARTERIES TO VEINS?

  thicker
• WHY ARE ARTERY ELASTIC LAYERS THICKER THAN VEIN?

  help maintain blood pressure as they can stretch/ recoil in response to heartbeat
• COMPARE ARTERY WALL THICKNESS TO VEIN?

  thicker
• WHY DO ARTERIES HAVE A THICKER WALL THAN VEINS?

  help prevent vessels bursting due to high pressure
• DO ARTERIES HAVE VALVES?

  no