The human lymphatic system
Chapter 1
The body's secret plumbing
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Chapter 2
The immune training camp
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Chapter 3
From ancient humors to modern microscopes
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Chapter 4
Guardians of balance and health
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YOUR GOAL
Master of The human lymphatic system
Ch 3 · From ancient humors to modern microscopes
Fun Fact
Milky vessels: The lymphatic vessels in the intestines look milky white instead of clear because they absorb digested fats from your meals.
Glossary
lymph (noun)
A colorless fluid containing white blood cells, which bathes tissues and drains into the bloodstream. Danish physician Thomas Bartholin coined the term in 1653, helping shift medicine away from traditional humoral theories.
A colorless fluid containing white blood cells, which bathes tissues and drains into the bloodstream. Danish physician Thomas Bartholin coined the term in 1653, helping shift medicine away from traditional humoral theories.
Quiz
What animal was Gasparo Aselli dissecting in 1622 when he accidentally discovered the milky lacteal vessels?
Quiz
Why did the intestinal lymphatic vessels discovered by Gasparo Aselli appear milky white?
Quiz
In what year did researchers shock the medical world by discovering lymphatic vessels in the human brain?
Quiz
Which two Scandinavian countries were home to the rival scientists who mapped the lymphatic system in the 1650s?
Quiz
Which scientist first coined the term 'lymphaticus' in the 17th century to describe this system?
Quiz
What ancient medical theory about bodily fluids delayed the understanding of the lymphatic system for centuries?
Quiz
Which ancient Greek physician first described vessels carrying a clear 'white blood' around 400 BCE?