How the heart works
Chapter 1
The four-chambered engine
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Chapter 2
The spark of life
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Chapter 3
Mapping the flow
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Chapter 4
Hearts under pressure
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YOUR GOAL
Master of How the heart works
Ch 1 · The four-chambered engine
Fun Fact
Heart pumping power: The human heart creates enough pressure to squirt blood up to 30 feet (9 meters) across a room.
Glossary
ventricle (noun)
A chamber of the heart that receives blood from an atrium and pumps it into the arteries. William Harvey first accurately described ventricular pumping action in his landmark 1628 treatise on animal circulation.
A chamber of the heart that receives blood from an atrium and pumps it into the arteries. William Harvey first accurately described ventricular pumping action in his landmark 1628 treatise on animal circulation.
Quiz
Which blood vessels carry oxygen-rich blood away from the heart to the rest of the body?
Quiz
What makes cardiac muscle cells uniquely resistant to fatigue compared to skeletal muscles?
Quiz
Which chamber of the human heart has the thickest muscular wall to pump blood to the entire body?
Quiz
Which side of the human heart is responsible for pumping oxygen-poor blood to the lungs?