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SLEEP (SLEEP REGULATION (Alertness and Wakefulness is thought to be…
SLEEP
SLEEP REGULATION
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This interaction normally leads to either a relatively stable period of wakefulness or a relatively stable period of sleep
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Sleep is coordinated by the hypothalamus - the hypothalamus sets the timing of the sleep wake cycle in response to daylight-darkness cues received from visual cues
Alertness and Wakefulness is thought to be controlled by the RETICULATING ACTIVATING SYSTEM - Located in the brain stem
The RAS is active during the wakefulness and inactive during sleep - Prior to sleep stimuli to the RAS decline and the BSR takes over
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Peripheral Sensory Information ascends to the RAS resulting in a continuous stream of impulses being sent to the cerebral cortex
ACETYLCHOLINE - Produced by neurons in the brain stem, vital for muscle movement and communication between neurons
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Sleep is regulated by the sleep-wake-cycle - this is a circadian rhythm - regulated events that occur on a roughly 24-hour cycle
The fluctuation and predictability of body temp, BP, HR, hormone secretion and mood depend on the human maintenance of the 24 hour circadian cycle
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SLEEP HYGIENE - Habits and practices the client uses that are associated with sleep - need to have an awareness of what supports and what encourages sleep