Biological Rhythms: Circadian Rhythms
- Created by: odavid601
- Created on: 19-06-19 10:44
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- Biological Rhythms, EP & EZ
- Periodic activity governed by: 1. Internal biological clock (endogenous pacemakers) 2. External changes in the enviro. (exogenous zeitgebers)
- Ultradian Rhythms- occurs many times a day
- Infrared Rhythms- take less than a day to complete
- Circannual Rhythms- around 24 hrs
- Sleep/Wake cycle
- Releasing hormones
- Varying our body temp.and bp
- Sleep/Wake cycle
- Sleep/Wake Cycle
- Governed by internal and external mechanisms
- Exogenous Zeitgebers- effect of daylight- drowsy=nighttime alert=daylight
- Endogenous Pacemakers- a biological clocks without the influence of external stimuli like light its called free-running
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- Periodic activity governed by: 1. Internal biological clock (endogenous pacemakers) 2. External changes in the enviro. (exogenous zeitgebers)
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