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Why Your Blood Goes Through Your Heart Twice (Biology Level 8)
Season 2
Episode 6
Published 1 day, 10 hours ago
Description
We're going to follow one red blood cell on one full lap of your body, and find out why its route has two loops instead of one. Then we'll look at what it's carrying and who's riding with it, because the road is dangerous.
The listener can trace one complete lap of the body: right side, lungs, left side, body, back. They can say why each of the three vessels is built the way it is, and name what each of the four parts of blood does. They also understand that every one of those parts exists because of what's in the other movement.
Sources:
Source: Episode 6 - Biology Level 8, Heart and Blood (6/10)
Style: Exam prep
Length: 797 words, 5 min target
Generated: 2026-10-25