Sleep Flashcards
What is non-REM sleep?
At start of night
Non-rapid eye movement sleep
Non-narrative images
Non-REM ECG activity?
Synchronised, rhythmic ECG activity
What happens to BP, HR and tidal volumes in non-REM sleep?
Decrease
Also decreased cerebral blood flow
What is REM sleep?
Rapid eye movement sleep
At end of night
Narrative dreaming
Non-wakefulness
ECG activity of REM sleep?
Fast activity
Why is REM sleep needed?
For brain development
What happens to cerebral blood flow in REM sleep?
It increases
Why do we need deep sleep?
To allow cortex to recover
How much sleep do we need per night?
7-7.5 Hours
Cell division increases or decreases during sleep?
Increases- it peaks during sleep
What is narcolepsy?
Falling asleep at inappropriate times
Who does narcolepsy occur in?
Equal males and females
15-36 years old
Clinical features of narcolepsy?
Daytime sleepiness Cataplexy Hypnagogic hallucinations Sleep paralysis RBD
Investigations for narcolepsy?
Overnight polysomnography
Lumbar puncture
Multiple sleep latency test
