human heart infographics
Every InfoGraphHub infographic tagged “human heart”.
ScienceDiscovering the Heart: A Timeline
How we found out what the heart does, from Galen's 'pores in the septum' and Ibn al-Nafis's lung circuit to William Harvey's proof of circulation in 1628, Malpighi's capillaries, the first ECGs and the first heart transplant in 1967.
ScienceHeart Key Terms and Definitions
Seventeen words you need to describe the heart precisely, from atrium and septum to semilunar valves, double circulation, the SA node, systole, cardiac output and the ECG, each with a short, exam-ready definition.
ScienceArteries, Veins and Capillaries
The three kinds of blood vessel compared: arteries carry blood away from the heart under high pressure, veins bring it back at low pressure with the help of valves, and capillaries, only one cell thick, are where the real exchange happens.
ScienceThe Heart by the Numbers
How often does your heart beat, and how much blood does it move? About 100,000 beats a day, roughly 5 litres a minute at rest and some 7,500 litres a day, from an organ about the size of your fist. Every figure is sourced and worked through.
ScienceThe Human Heart Explained
The heart is a muscular pump in the middle of your chest. A labelled front-view diagram of its four chambers, four one-way valves, the septum and the great blood vessels that link it to the lungs and the rest of the body.