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The Heart

How does living muscle keep blood moving through the lungs and body? Explore the heart’s chambers, valves, electrical pathways, and changing workload, then explain what happens when one component no longer does its job.

6 chapters · 1 hr 9 min reading

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Chapters

  1. 01

    Finding the heart in the chest

    12 min
  2. 02

    One journey through two circuits

    12 min
  3. 03

    How muscle becomes a pump

    11 min
  4. 04

    Timing the beat

    11 min
  5. 05

    Meeting changing demand

    11 min
  6. 06

    What a failing component reveals

    12 min