Circulatory System Anatomy

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Across
  1. 3. These ensure one way flow through veins by opening and closing
  2. 4. Type of vessel that carries deoxygenated blood back to the heart
  3. 8. Blood _____ increases with increasing bulk flow and decreasing summed cross-sectional area
  4. 9. Blood vessel that connects arteries to capillaries
  5. 10. The arteries are separated from the ventricles by the _______ valves
Down
  1. 1. Blood vessel where gas exchange occurs. Vessel wall is one cell thick
  2. 2. Branches from arterioles that allow blood to bypass capillaries when precapillary sphincters constrict
  3. 5. The phase of the heart when the heart contracts
  4. 6. _____ capillaries have large pores
  5. 7. Artery that takes oxygenated blood away from the heart