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Across 2. Necrosis of a localized area of heart tissue caused by lack of blood supply 8. Method that diverts blood away from the heart and lungs during surgery 11. The term for a tumor that originates in the lymphatic system is __________. 12. A decrease in the caliber of blood vessels is ________________. 13. One type of lipid 14. Removes plaque from the lining of an artery 15. The chamber that receives blood from the venae cavae (2 words) 18. The term for the largest vein of the body (2 words) 20. A soft blowing or rasping sound that may be heard when listening to the heart 21. Sudden blocking of an artery or lymph vessel by foreign material that has been brought to the site of the blockage by circulating blood is a/an ______________. 22. The muscular layer of the heart

Down 1. The term for masses of lymphatic tissue in the throat. 3. The term for tiny vessels with one-cell-thick walls. 4. Valves between the atria and the ventricles 5. Agent that reduces blood volume through greater excretion of water 6. Any disease of the lymph nodes 7. The term for small arteries 9. The sac made of a double membrane that encloses the heart 10. Primary disease of the heart muscle itself 14. The term that means an irregular heartbeat is ______________. 16. A tumor consisting primarily of blood vessels 17. The term for the vessels the deliver blood to the veins 19. The name of the fluid generally associated with lymphatic vessels is _________.