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Multiple Choice
In the urinary system, which organ is primarily responsible for filtering the blood to form urine?
A
Urinary bladder
B
Kidneys
C
Urethra
D
Ureters
Verified step by step guidance
1
Understand the main function of each organ listed in the urinary system: the urinary bladder stores urine, the urethra is the passageway for urine to exit the body, and the ureters transport urine from the kidneys to the bladder.
Recall that the process of filtering blood to form urine involves removing waste products and excess substances from the bloodstream.
Identify which organ contains the microscopic filtering units called nephrons, which are responsible for this filtration process.
Recognize that the kidneys are the organs that contain nephrons and perform the filtration of blood to produce urine.
Conclude that among the options given, the kidneys are primarily responsible for filtering the blood to form urine.