Biological Rhythms

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  • Created on: 28-12-13 16:30
The three types of biological rhythms
circadian, infradian, ultradian
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Circadian
Occur every 24 hours E.G: sleep-wake cycle
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Infradian
Occur less frequently than once daily E.G: menstrual cycle
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Ultradian
Occur more than once daily E.G: sleep cycle (stages of sleep)
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Endogenous Pacemakers: Internal Clock
SCN acts as internal clock to keep body on 24 hour sleep-wake cycle
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Melatonin
When there is light its released thus inducing sleep and vice versa
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Card 2

Front

Circadian

Back

Occur every 24 hours E.G: sleep-wake cycle

Card 3

Front

Infradian

Back

Preview of the front of card 3

Card 4

Front

Ultradian

Back

Preview of the front of card 4

Card 5

Front

Endogenous Pacemakers: Internal Clock

Back

Preview of the front of card 5
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