Atria have thinner walls than ventricles because the ventricles require thicker muscle layers for stronger contractions to pump blood effectively.
- atria - ventricles need thicker muscle walls for stronger contractions to pump blood
| Front | Which have thinner walls, atria or ventricles, and why? |
|---|---|
| Back | - atria - ventricles need thicker muscle walls for stronger contractions to pump blood |
Tags: blood
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