Breathing Crossword Puzzle

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