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Title: Transportation of CO2 and O2
Description: Gives an overview of how CO2 and O2 are transported and used around the body.
Description: Gives an overview of how CO2 and O2 are transported and used around the body.
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Transportation of carbon dioxide and oxygen
Cardiac output increases as exercise intensity increases as more blood is demanded
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Oxygen transport
Oxygen transport from two ways:
● 97% Within protein haemoglobin packed with red blood cells as oxyhaemoglobin (HbO2)
● 3% Within blood plasma
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each haemoglobin can hold four molecules of oxygen
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● 23% Combined with haemoglobin as carbaminohaemoglobin
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Efficient transport
Efficient transport of O2 and CO2 aids working muscles in that it:
● Prolongs the duration of anaerobic and aerobic activity
● Delays anaerobic threshold which…
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speeds up recovery during and after exercise
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Smokings impact on O2 transportation
● Cigarette smoke contains carbon monoxide
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● As a result it reduces HbO2 association in the lungs and thus maximum O2 intake
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● So all positive effects of O2 and CO2 are reversed
Title: Transportation of CO2 and O2
Description: Gives an overview of how CO2 and O2 are transported and used around the body.
Description: Gives an overview of how CO2 and O2 are transported and used around the body.