The body's secret filters
Chapter 1
The anatomy of a cellular filter
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Chapter 2
Chemical balance and body harmony
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Chapter 3
From ancient mummies to modern dialysis
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YOUR GOAL
Master of The body's secret filters
Ch 1 · The anatomy of a cellular filter
Fun Fact
Kidney blood flow: Kidneys filter your entire blood supply roughly 40 times every single day.
Glossary
glomerulus (noun)
A cluster of capillaries at the end of a kidney tubule where waste products are filtered from the blood. In 1666, Marcello Malpighi discovered these tiny capillary networks while studying the microscopic structure of the kidney.
A cluster of capillaries at the end of a kidney tubule where waste products are filtered from the blood. In 1666, Marcello Malpighi discovered these tiny capillary networks while studying the microscopic structure of the kidney.
Quiz
What percentage of the heart's pumped blood goes directly to the kidneys every minute?
Quiz
If you stretched out all the microscopic nephrons from both human kidneys, how far would they reach?
Quiz
Approximately how many nanometers wide are the pores in the glomerulus's filtering membrane?
Quiz
What is the name of the tiny, high-pressure cluster of blood vessels where kidney filtration begins?
Quiz
Out of the 180 liters of fluid filtered by human kidneys daily, how much is actually turned into waste?
Quiz
What vital nutrients do the kidney's renal tubules actively pull back into the bloodstream during recycling?
Quiz
Which Italian biologist first discovered the microscopic filtering units of the kidney in 1666?
