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Multiple Choice
Which of the following structures is responsible for filtering blood to form urine in the urinary system?
A
Bladder
B
Urethra
C
Nephron
D
Ureter
Verified step by step guidance
1
Step 1: Begin by identifying the primary function of the urinary system, which is to filter blood, remove waste products, and regulate water and electrolyte balance in the body.
Step 2: Understand the role of the nephron, which is the functional unit of the kidney. The nephron is responsible for filtering blood, reabsorbing necessary substances, and forming urine.
Step 3: Compare the nephron's function to the other structures listed: the bladder stores urine, the urethra is the tube that expels urine from the body, and the ureter transports urine from the kidneys to the bladder. None of these structures filter blood.
Step 4: Recall that the nephron consists of components such as the glomerulus and tubules, which work together to filter blood and concentrate waste into urine.
Step 5: Conclude that the nephron is the correct answer because it is the structure directly responsible for filtering blood to form urine in the urinary system.