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Fahad
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Victims of drowning who have stopped breathing are sometimes revived by a process called 'artificial respiration'. Why would a biologist object to the use of the expression? (Resuscitation' is a better word to use')

Why do you think your breathing rate and heart rate stay high for some time after completing a spell of vigerous exercise?
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hornblower
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(Original post by Fahad)
Victims of drowning who have stopped breathing are sometimes revived by a process called 'artificial respiration'. Why would a biologist object to the use of the expression? (Resuscitation' is a better word to use')

Why do you think your breathing rate and heart rate stay high for some time after completing a spell of vigerous exercise?
Oxygen debt?
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Ben.S.
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(Original post by Fahad)
Victims of drowning who have stopped breathing are sometimes revived by a process called 'artificial respiration'. Why would a biologist object to the use of the expression? (Resuscitation' is a better word to use')

Why do you think your breathing rate and heart rate stay high for some time after completing a spell of vigerous exercise?
Actually, biologists do not all object to using that word - but the question wants you to say that 'breathing is not respiration - respiration occurs inside cells'. However, most physiologists will hapilly refer to the ventillation of gaseous exchange epithelia as 'respiration'. Breathing rate and heart rate stay high because of an oxygen debt - vigorous excersise results in the use of anaerobic respiration, which has the effects of reducing blood pH. The displacement of carbon dioxide and oxygen partial pressures from their set points is also a key factor (that's by no means the whole story though!).

Ben
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