Multiple Choice
In the urinary system, what is the functional unit of the kidney responsible for filtering blood and forming urine?
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25. The Urinary System
The Nephron
Multiple Choice
In renal anatomy, the structural and functional unit of the kidney is the _____.
A
Nephron
B
Renal pelvis
C
Collecting duct
D
Glomerulus
Verified step by step guidance1
Understand that the question asks for the structural and functional unit of the kidney, which means the smallest part that performs all the essential functions of the kidney.
Recall that the kidney's main functions include filtering blood, removing waste, and regulating fluid and electrolyte balance.
Identify the nephron as the microscopic unit responsible for these functions, including filtration, reabsorption, and secretion.
Recognize that other options like the renal pelvis, collecting duct, and glomerulus are parts of the kidney but do not individually perform all kidney functions.
Conclude that the nephron is the correct answer because it is the complete unit that carries out the kidney's structural and functional roles.
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