Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
What the Blood Knew: Ibn al-Nafis, the Pulmonary Circulation, and the Courage to Be Right Before the World Was Ready

What the Blood Knew: Ibn al-Nafis, the Pulmonary Circulation, and the Courage to Be Right Before the World Was Ready

Hikma, Narin

Paperback

Biographies GeneralMedical ReferenceIslam

ISBN13: 9798195564421
Publisher: Independently Published
Published: May 4 2026
Pages: 258
Weight: 0.77
Height: 0.54 Width: 6.00 Depth: 9.00
Language: English

In 1242, a physician in Cairo looked at the human heart and saw something no one had seen before.

Ibn al-Nafis was thirty years old when he wrote the passage that would change medicine - and then wait 636 years to be recognized.

Working in the great hospitals of Ayyubid Cairo, Ibn al-Nafis examined the cardiac septum and found it solid, impermeable, and utterly contrary to what Galen had claimed for thirteen centuries. Blood did not seep through invisible pores from the right side of the heart to the left. It traveled through the lungs - picking up air, being refined - and returned to the heart through the pulmonary vein. In two hundred words buried in a medical commentary, he described what William Harvey would be credited with discovering 382 years later.

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