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In renal anatomy, what is the basic functional unit of the kidney responsible for filtering blood and forming urine?
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25. The Urinary System
The Nephron
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In the human kidney, approximately how many nephrons does each kidney contain?
A
About 10 million nephrons
B
About 1 million nephrons
C
About 100,000 nephrons
D
About 100 million nephrons
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Understand that the nephron is the functional unit of the kidney responsible for filtering blood and forming urine.
Recall that each human kidney contains a large number of nephrons to efficiently filter blood and maintain homeostasis.
Recognize that the typical range for the number of nephrons per kidney in a healthy adult is approximately 1 million.
Compare the given options to this known physiological fact to identify the correct estimate.
Conclude that the correct answer is 'About 1 million nephrons' per kidney based on standard anatomical knowledge.
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