Exercise and the body's response

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what is oxygen debt?
the amount of extra oxygen the body needs after exercising to deal with accumulated lactic acid
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how does the body respond when exercising?
-breathing rate increases (more frequent)
-breathing volume increases (deeper breaths)
-heart rate increases to pump this oxygenated blood around the body to where its needed
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why does the body react like this?
-more energy is required when exercising
-so aerobic respiration increases
-so more oxygen is needed
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what happens when you respire anaerobically during exercise?
-oxidation of glucose is incomplete
-leads to a build up of lactic acid
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how does lactic acid affect the body?
causes muscles to fatigue so they stop contracting efficiently (its toxic)
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how does the body get rid of lactic acid after exercise?
-it is transported out of the muscles by the blood to the liver
-here it is converted back into glucose in a series of chemical reactions
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Other cards in this set

Card 2

Front

how does the body respond when exercising?

Back

-breathing rate increases (more frequent)
-breathing volume increases (deeper breaths)
-heart rate increases to pump this oxygenated blood around the body to where its needed

Card 3

Front

why does the body react like this?

Back

Preview of the front of card 3

Card 4

Front

what happens when you respire anaerobically during exercise?

Back

Preview of the front of card 4

Card 5

Front

how does lactic acid affect the body?

Back

Preview of the front of card 5
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