Nature · 2
How many chambers does a fish heart have?
Answer
2
Most fish have a two-chambered heart consisting of one atrium and one ventricle, a simpler arrangement than the four-chambered mammalian heart. This two-chambered design allows blood to flow from the heart to the gills for oxygenation, then directly to the body tissues. Despite its simplicity compared to mammalian hearts, the fish heart functions efficiently in the aquatic environment where oxygen is less abundant than in air.
💡 Did you know?
Fish hearts are simpler than mammals' but function efficiently in water.
Other options people guess
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Topics
- fish
- anatomy
- biology
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