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Respiratory Crossword Puzzle

Across
This helps to clean the air we breath, as well as warming it.
True or False, the lungs are the only organ that can float on water.
These lead to the lobes of the lungs.
A complete lack of oxygen is known as what.
This is commonly referred to as the wind pipe.
Down
Lobes are filled with small, spongy sacs called what?
This is a dome shaped muscle at the bottom of the lungs.
This lung is slightly larger than the other.
This is the only animal that breathes only through their nose.
This is called a decrease in oxygen.