During inhalation, we breathe in ______.
oxygen.
Blood carries oxygen to our ____
organs
Does our body need carbon dioxide?
no
What are the two important processes of respiration?
1) the process of inhaling and exhaling air 2) the process of exchanging two gases (oxygen and carbon dioxide)
Air travels down the ____ to the lungs
windpipe / trachea
Do our bodies need oxygen?
yes
What is inhalation?
Breathing air in (lungs get bigger)
What is exhalation?
Breathing out (lungs get smaller)
What is this?
lungs
During exhalation, we breathe out ________.
carbon dioxide
Do fish breathe?
yes
What is not used in respiration? A) lungs B) oesophagus
B) Oesophagus