Breathing Crossword Puzzle
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QUESTIONS LIST: trachea : the tube connecting the mouth & nose to the lungs, bronchi : bigger tubes that carry air in and out of the lungs, bronchioles : smaller tubes that carry air to the alveoli, alveoli : small sacs at the end of the bronchioles that send oxygen to the bloodstream, lungs : two large organs that let you breathe, intercostal : these muscles squeeze the lungs in & out, inhale : to breathe air in, oxygen : the gas you breathe in, diaphragm: a strong muscle underneath the lungs, carbon dioxide : the gas you breathe out
