Biology / Bio 3235 · Atom · ~20 seconds
Nephron Structure
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The nephron, the kidney's functional unit, has a glomerulus that filters blood, a Bowman's capsule that collects filtrate, and a tubule system that processes it into urine.
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One human kidney holds roughly a million nephrons running this process in parallel.
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A nephron filters plasma, not whole blood — blood cells and large proteins stay behind in the vessel.