3. ARTERIES

4. ARTERIES ARTERIOLES

5. ARTERIES ARTERIOLES CAPILLARIES

6. ARTERIES ARTERIOLES CAPILLARIES VENULES

7. ARTERIES ARTERIOLES CAPILLARIES VENULES VEINS

9. ARTERIES

10. ARTERIES artery outer layer

11. ARTERIES artery outer layer thick smooth muscle

12. ARTERIES artery outer layer thick smooth muscle elastic white fibrous tissue

13. ARTERIES artery outer layer thick smooth muscle elastic white fibrous tissue inner lining (endothelium)

17. Vein

18. Vein outer layer

19. Vein outer layer thin smooth muscle

20. Vein outer layer thin smooth muscle inner lining (endothelium)

21. Vein outer layer thin smooth muscle inner lining (endothelium) valve