1) What is the main job of the urinary system? a) To digest food b) To carry oxygen c) To remove liquid waste d) To control movement 2) Which organs filter waste from the blood to make urine? a) Lungs b) Kidneys c) Intestines d) Bladder 3) What are nephrons? a) Muscles that push urine b) Tubes that connect to the bladder c) Tiny filters inside the kidneys d) Hormones that clean the blood 4) What is the function of the ureters? a) To filter blood b) To hold urine c) Carry urine to bladder d) Remove salt 5) What does the bladder do? a) Produces blood cells b) Filters chemicals c) Stores urine d) Sends messages 6) What happens inside the nephron? a) Food is broken down b) Removes wastes c) Air is exchanged d) Adds nutrients 7) What is the urethra? a) A part of intestine b) Takes urine out c) Filter in bladder d) Muscle in kidneys 8) How does the urinary system maintain balance? a) Keeps heart beating b) Balances water/salt c) Digests proteins/fats d) Helps carry oxygen 9) What signals kidneys to adjust urine? a) Hormones b) White blood cells c) Muscles d) Enzymes 10) What could happen if bacteria or toxins enter the urinary system? a) Bladder grows larger b) Blood pressure increases c) Infections or kidney damage d) Urine turns into blood

6 Urinary System Function

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