1) The intercostal muscles are found a) in your arm b) in your lungs c) between the ribs d) across the bottom of the chest like a platform 2) The diaphragm muscle is found a) in your arm b) in your lungs c) between the ribs d) across the bottom of the chest like a platform 3) During inhalation, the muscles between ribs contract causing the ribcage to be... a) Pushed down to pull air in b) Pulled up and out c) Pulled up and in d) Pushed down and out 4) When the ................ contracts - it moves down a) Lungs b) Windpipe c) Bronchus d) Diaphragm 5) Causing the Volume inside your chest to a) Increase b) Decrease 6) Increased chest volume causes... a) An increase in pressure inside your chest b) A decrease in pressure inside your chest 7) The pressure decrease inside your chest causes air to be drawn into your lungs because the air moves... a) From high to low pressure b) From low to high pressure 8) The pathway for air is .... a) nose to lungs to throat b) nose to trachea to tubes in lungs to alveoli c) nose to trachea to ribs d) bronchioles to trachea to alveoli 9) In the alveoli gases are exchanged, This means ..... a) oxygen enters blood, carbon dioxide leaves blood b) carbon dioxide enters blood, oxygen leaves blood c) oxygen turns into carbon dioxide d) carbon dioxide turns into oxygen 10) Alveoli have.... a) thin walls and huge numbers of capillaries b) thick strong walls c) no blood supply d) a lining of mucous

Breathing

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