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Name: ____________________________ Science 7 - ____ Johnston Date: _________________________ Chapter 13 Supplemental Worksheet: The Excretory System Complete the following sentences using the appropriate words from the textbook. 1. The organs of the urinary system help control blood ________________________ by removing excess water. 2. Capillaries coming from the tubules in the kidneys merge to form small ________________________ . 3. In the nephron, water, sugar, and salt are reabsorbed by ________________________ surrounding the tubule. 4. Perspiration contains water and ________________________ . 5. Your urinary system helps your body maintain ________________________ with the help of other excretory organs. 6. Waste products that are not removed can accumulate and act as ________________________ . 7. Urine in each ________________________ drains into a funnel-shaped area of each kidney that leads to the ureters. 8. The process of artificially filtering blood is called ________________________ . 9. Lungs are ________________________ organs, removing carbon dioxide and water. 10. An adult loses about ________________________ liter(s) of water through urine daily. Match the description on the left with the word on the right by writing the correct letter in each blank. _____ 11. the filtering units in the kidney a. excretory _____ 12. leads from the bladder to outside the body b. ureters _____ 13. returns purified blood to the body from the kidneys c. bladder _____ 14. tubes leading from each kidney to the bladder d. urethra _____ 15. filter blood that has collected wastes from cells e. carbon dioxide _____ 16. muscular organ that holds urine f. moisture (water) _____ 17. kidneys, lungs, and skin are all ______ organs g. nephrons _____ 18. creates fog when you breathe on a cold window h. renal veins _____ 19. lungs excrete water and ______ i. kidneys _____ 20. blood is pumped through this during dialysis j. tubing Name: ____________________________ Science 7 - ____ Johnston Date: _________________________ Chapter 13 Supplemental Worksheet: The Respiratory System Study the diagram below. Then label each of the numbered structures. Complete the following sentences using the appropriate words from the textbook. 8. The smallest tubes in the lungs are the ____________________________ . 9. The ____________________________ prevents food from entering the larynx. 10. The pharynx is a passageway for ________________________ and ________________________ . 11. The alveoli are surrounded by ____________________________ . 12. Air entering your body is first moistened and warmed in the ___________________________ . 13. The trachea is kept open by rings made of ____________________________ . Check (4) the statements that agree with the textbook. Rewrite the other statements so that they agree. _____ 14. Emphysema can result in the blood being low in hemoglobin. _____ 15. The greatest contributing factor to lung cancer is inhaling the tar in cigarette smoke. _____ 16. People who produce too much mucus in the bronchial tubes have a disease called emphysema. _____ 17. A lung disorder often associated with allergies is called asthma. _____ 18. The diaphragm is a muscle beneath the lungs. _____ 19. The mucus lining of the trachea moves foreign particles to the esophagus. _____ 20. When you inhale, your diaphragm relaxes.