The four-chambered engine
The spark of life
Mapping the flow
Hearts under pressure
YOUR GOAL
Master of How the heart works
artiteacher The four-chambered engine
Keep on beating, beating! Out of the chest, it's still got a spark!
artiteacher The classic "lub-dub" sound of your heart is actually the noise of valves snapping shut.
artiteacher Four specialized chambers and one-way valves keep your blood moving in a single, correct direction.
artiteacher Tap the heart chambers in rhythm to learn how blood circulates through your body.
Heart pumping power: The human heart creates enough pressure to squirt blood up to 30 feet (9 meters) across a room.
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.
Which blood vessels carry oxygen-rich blood away from the heart to the rest of the body?
What makes cardiac muscle cells uniquely resistant to fatigue compared to skeletal muscles?
Which chamber of the human heart has the thickest muscular wall to pump blood to the entire body?
Which side of the human heart is responsible for pumping oxygen-poor blood to the lungs?