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- 1. Multiple-choice30 seconds1 pt
____________ is a muscular organ on the left side of your chest
liver
lungs
heart
- 2. Multiple-choice30 seconds1 pt
Blood vessels called veins bring impure blood to the_________ side of the heart
left
right
middle
- 3. Multiple-choice30 seconds1 pt
The heart sends the impure blood to______________ to be made pure.
liver
kidney
lungs
- 4. Multiple-choice30 seconds1 pt
______________ protects the lungs
chest
muscles
ribcage
- 5. Multiple-choice30 seconds1 pt
The process of air moving in and out is called_____________
inhale
exhale
breathing
