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Across 2. Lose of muscles normal strength and function 4. The systolic blood pressure is noted during the contractions of these 6. Collection of blood or fluid in the plural space 10. Flushing or washing-out with a specified solution 12. Diagnostic procedure to visualize the sigmoid colon 13. Scar tissue 15. Part of lungs in which gas exchange occurs 17. Inflammation of the oral mucosa 18. Crack in the skin 19. Largest organ of the body 20. Rapid rate of respiration

Down 1. Oxygen combines with this in the blood 3. Collection of air in the pleural space 5. The fifth vital sign 7. Removal of necrotic material 8. Respiration pattern characteristic of a narcotic overdose 9. Production and excretion of large amounts of urine 11. Process of gas exchange 14. An opening into the colon to divert and drain fecal material 16. low urine output