True: The tiny air sacs in the lungs are called alveoli, The trachea is another name for windpipe, Intercostal muscles are between the ribs , The alveoli have a moist lining , The alveoli have a good blood supply , False: The air you breathe in has more carbon dioxide than the air you breathe out, Bronchioles are wider tubes than the bronchi, When you breathe in your diaphragm curves upwards, The alveoli have really thick walls , Carbon dioxide is carried by red blood cells,

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