Across
- 2. Short vessels connecting arterioles to capillaries
- 4. Three layered walls of blood vessels (intima/media/externa)
- 6. Interwoven networks of capillaries supplying tissues
- 12. Highly permeable capillaries with large gaps
- 13. Simple squamous epithelium lining all vessels
- 14. Interior space of a blood vessel
- 15. Blood vessels carrying oxygenated blood away from heart (except pulmonary arteries)
- 16. Large arteries near heart with elastic walls (e.g., aorta)
- 17. Small veins collecting blood from capillaries
- 18. Innermost vessel layer of endothelium and connective tissue
- 19. First venules receiving blood from capillaries
- 21. Outer connective tissue layer anchoring vessels
- 22. Final branches before capillaries
- 23. Medium arteries distributing blood to organs
Down
- 1. Capillaries with pores for increased permeability
- 3. Small arteries controlling blood flow to capillaries
- 5. Microscopic vessels where gas/nutrient exchange occurs
- 7. Least permeable capillaries with tight junctions
- 8. Direct arteriole-venule bypass in capillary beds
- 9. Vessels carrying deoxygenated blood toward heart (except pulmonary veins)
- 10. The entire network of blood vessels
- 11. Modified capillaries in liver/spleen/bone marrow
- 20. Middle layer of smooth muscle regulating diameter