1
where does air enter
nose mouth
what muscle controlls breathing
diaphragm
what gas do we produce
carbon dioxide
what is a bad habit for lungs
smoking
the bronchial tubes into the
lungs
there are hundreds of in your lung
air sacks
the lung cover is called
pleura
what system is related to the respiratory system
circulatory system
when you see your breath outside, it is
water vapour
the lung cover is called
pleura