Athletes train their body so that their lungs can take in more air in a breath. This increases the capacity for the body to bring more oxygen to the different parts of the body (in this case, especially the muscles) between breaths.
The respiratory system works closely together with the circulatory system. The respiratory system brings in oxygen from the atmosphere into the body, while the circulatory system brings the oxygen to the different parts of the body. The two systems also help bring one of the waste products of respiration–carbon dioxide–out of the body.
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The video made me more confused
By: Karen Tang Kai En (13) 5-1 on 13 Jul 2009
at 5:01 pm
O.o o.O I don’t understand at all LOL , can post a easier to understand video? O.o
By: Teo Shi Min Jasmine [ 5/1 ] on 16 Jul 2009
at 5:36 pm
My dear pupils, this video is meant as an enrichment. It’s OK if you don’t understand every part of it.
There are many other videos on the respiratory system in Youtube. You can search through it with the keywords “human respiratory system”.
By: Melvin Pao on 17 Jul 2009
at 10:24 am
Ehh , Ok lor O_o , Still put smiley face XDXD
LOLOL
By: Teo Shi Min Jasmine [ 5/1 ] on 24 Jul 2009
at 9:48 pm