Biology / Unit 13 Bio 3235 short lesson, about 20 seconds
Nephron Structure
Captions available
The idea
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.
In practice
One human kidney holds roughly a million nephrons running this process in parallel.
Where people slip
A nephron filters plasma, not whole blood — blood cells and large proteins stay behind in the vessel.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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