respiratory system
Snemalna Knjiga Besedilo
- how does oxygen enter your body
- Oh hi guys my name is Ava and today i'll be showing you how oxygen enters your body
- The oxygen molecule first enters your body through your nose
- After the oxygen enters your nose the air travels to your trachea.
- After this happens the air then enters your bronchi after this your bronchi then carries the air to your lungs
- while the air is your lungs it goes to these air sacs called alveoli
- this is where the exchange of oxygen and carbon dioxide happens
- now after the exchange of oxygen and carbon dioxide the carbon dioxide is then exhale
- and the oxygen that was picked up now returns to the heart
- https://www.youtube.com/watch?v=UTR1IsX55dc&t=63s
- these are my referenceshttps://www.youtube.com/watch?v=mOKmjYwfDGU
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