| 11. | His colleague noticed that the mouse tumor was full of blood vessels.
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| 12. | Each blocked the growth of blood vessels that tumors need for nourishment.
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| 13. | The new lung is then placed and the blood vessels reattached.
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| 14. | The pain comes when blood vessels clog, starving tissues of oxygen.
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| 15. | Eventually blood vessels that are no longer needed die by apoptosis.
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| 16. | The branched areas in the lungs are blood vessels and bronchi.
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| 17. | Angiogenesis ( the attraction of new blood vessels ) is increased.
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| 18. | Blood vessels and nerves reach the cardiac muscle from the epicardium.
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| 19. | It is believed to constrict dilated blood vessels within the brain.
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| 20. | The inner surface of the blood vessel consists of endothelial cells.
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