the.com/nephron
a microscopic plumber filtering your entire blood supply sixty times a day, uncomplaining.
countroughly one million per kidney, no replacements issued
daily outputfilters 180 liters, returns nearly all of it
lengtheach tube stretches about 5 centimeters uncoiled
no regrowthlost nephrons never come back, ever
loop of henlethe hairpin that lets you survive deserts