The respiratory system is made up of the airways and the lungs. Through the airways the air circulates in the direction of the lungs and it is in these organs where gas exchange takes place.
Challenge: This puzzle has not yet been solved in {size} size. Be the first to complete it.
The respiratory system is made up of the airways and the lungs. Through the airways the air circulates in the direction of the lungs and it is in these organs where gas exchange takes place.
Best results for size Updated every 10 min
Play similar puzzle
Comments
Rate this game
Add comment
Other puzzle from the For kids category