A stylized human heart surrounded by branching black lines and a stethoscope.

Will your heart keep up? Prove you know every major route in this tough quiz now

Difficulty

Hard

Questions

Volts

3/q

Blood is screaming through the aorta at top speed. It hits the junctions and dives into the capillaries. Do you know which vessels take the pressure and which ones carry the load back to the start? Prove you can map the flow. The clock is ticking. Don't miss a beat.

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A stylized human heart, a microscope, a blood drop with blood type symbols, and a medical cross.

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