Blood vessels

?

Arteries

  • carry oxygenated blood away from heart
  • thick layers of muscle and elastic tissue
  • small lumen
1 of 3

Veins

  • Thinner walls than arteries
  • Large lumen
  • Often have valves to prevent backflow of blood
2 of 3

Capillaries

  • Narrow, walls (1 cell thick)
  • Narrow lumen
  • Carry blood through the organs
3 of 3

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Blood vessels resources »