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Excretory System Review Answer Key

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Organs of the Excretory System
#1 This organ in the excretory system stores urine until the body is ready to eliminate it. Urinary Bladder
#2 These tubes lead from the kidneys to the bladder. Ureters
#3 This excretory organ eliminates water and some chemicals through perspiration. Skin
#4 Urine passes out of the body through this tube Urethra
#5 These are tiny structures in the kidneys where blood is actually filtered. Nephrons
#1 This organ system removes waste products from the body. Excretory system
#2 Waste products leave your body as a liquid called _____. Urine
#3 You exhale this gas as a waste product. Carbon Dioxide
#4 What are the four major organs of the excretory system? Kidney, lungs, skin, and liver
#5 This is the ability of an organism to maintain a stable environment inside its body. Homeostasis
#1 Carbon dioxide is exhaled through these organs of the excretory system. Lungs
#2 These are bean-shaped organs that filter wastes and toxins out of the blood. Kidneys
#3 In order to keep your excretory system healthy, you should drink plenty of this. Water
#4 This is the process of discharging waste from the blood, tissues, or organs. Excretion
#5 This machine is used to filter your blood when your kidneys are not functioning properly. Dialysis
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Final Question
What is the function of the kidneys? To filter waste products out of the blood.