Arteries and Veins

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Across
  1. 3. Smaller vessels that collect blood from capillaries and feed into veins
  2. 6. total resistance in systemic circulation
  3. 9. Force exerted by circulating blood on arterial walls
  4. 10. Innermost layer of a blood vessel, includes the endothelium
  5. 12. Structures that prevent backflow in low-pressure vessels
  6. 13. Volume of blood passing through a vessel per unit time
  7. 14. Average pressure in arteries during a full cardiac cycle
  8. 16. Movement of blood through vessels, driven by pressure gradients
  9. 17. General term for any tube that carries blood
  10. 18. Widening of blood vessels due to smooth muscle relaxation
  11. 19. Capillary type with tight junctions and limited permeability
Down
  1. 1. Middle layer of a vessel, rich in smooth muscle
  2. 2. Capillary type with pores for enhanced exchange
  3. 4. Inner lining of blood vessels made of simple squamous cells
  4. 5. Capillary type with large gaps, found in liver and bone marrow
  5. 6. Outer connective tissue layer of a blood vessel
  6. 7. Vessels that return blood to the heart
  7. 8. Networks where exchange of gases and nutrients occurs
  8. 11. Small arteries that regulate blood flow into capillaries
  9. 15. Vessels that carry blood away from the heart