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Name _____________________________________ Excretory System WebQuest Complete all parts of this webquest. WEBSITE #1: http://library.thinkquest.org/2824/Excretory.html 1. 2. 3. OH NO!!!! YOU HAVE FOUND YOUR SELF IN EUROPE..HOW DO YOU ASK FOR THE BATHROOM?_______________________ OH NO!!!! YOU HAVE FOUND YOUR SELF IN CHINA..HOW DO YOU ASK FOR THE BATHROOM?_______________________ OH NO!!!! YOU HAVE FOUND YOUR SELF IN SPAIN..HOW DO YOU ASK FOR THE BATHROOM?_______________________ PART A: WEBSITE #2: Go to: http://www.fi.edu/learn/heart/systems/excretion.html 1. The process of __________ involves finding and removing ________ materials produced by the_____. 2. The primary organs of excretion are the _________, _________, and __________. 3. _______ gases are carried by _________ traveling through the veins to the lungs where __________ takes place. 4. Dead cells and__________ are removed from the body through the skin which is part of the ____________ system. 5. Liquid waste is removed from the body through the _________. 6. The kidneys are small (about 10 centimeters long) reddish-brown organs that are shaped like ________. 7. During ___________, blood passes through the __________ in order to deposit used and unwanted __________, ___________, and a nitrogen-rich molecule called__________. 8. The kidneys ___________ the wastes from the __________, forming a liquid called __________. 9. The kidneys funnel the urine into the __________ along two separate tubes called __________. 10. The bladder stores the urine until muscular ______________ force the urine out of the body through the ___________. Name _____________________________________ 11. Each day, your kidneys produce about ____________ of urine. 12. This occurs through the process of _____________. 13. If your kidneys are _____________ and not working properly, the buildup of toxic waste in your system will eventually lead to ___________. PART B: WEBSITE #3: Go to: http://www.medindia.net/animation/anatomy_urinary.asp Slow Website May Take Tine to Load! 1. Each kidney is about the size of a human ____________. 2. Label the diagram. 3. The specialized unit of the kidney is called the nephron, and its function is to produce _____________ by filtering waste and extra fluid from the blood. (Stop at slide 3) PART C: WEBSITE #4: Go to: http://www.tutorvista.com/content/biology/biology-iv/excretion/nephronstructure.php 4. The _________________ is the functional unit of the kidney. It consists of a twisted ____________ closed at one end and open at the other with a network of associated blood vessels (glomerulus). 5. Each kidney has approximately ____________ nephrons that are about __________ in length. Name _____________________________________ PART D: WEBSITE #5: Go back to: http://www.medindia.net/animation/anatomy_urinary.asp (slide 4) 6. Blood enters the kidney through the renal _____________ and passes into the nephron. 7. The bulk of the filtering takes place in the _________________. 8. The filtered wastes then travel through the tubule where the excess fluid is converted to ____________. 9. The urine reaches the renal pelvis and passes into the ____________. 10. Next, it enters the urinary ____________ to be stored until it is released via the ______________. 11. Finally, the filtered blood leaves the kidney through the renal ______________. WEBSITE #6: Go to http://www.muschealth.com/video/Default.aspx?videoId=10098&cId=24&type=rel1. 1. What is dialysis? 2. What are some benefits of dialysis? PART E: Label the diagram of the urinary system. Use the Website of Your Choice. Name _____________________________________ Summarize what you have learned about the function of the: Kidneys Ureters Bladder Urethra What are the 3 other excretory organs? What are the components of urine? What builds up in the body if someone’s kidney stopped functioning? List 5 interesting facts you have learned about the excretory system: 1. 2. 3. 4. 5.