Sleep Flashcards
1
Q
What are the two types of sleep?
A
Non-REM sleep (deep)
REM sleep
2
Q
What happens in non-REM sleep?
A
Start of night Synchronised, rhythmic EEG activity, partial muscle relaxation of muscles Reduced cerebral blood flow Reduced heart rate, BP and tidal volumes Some non-narative images
3
Q
What is REM sleep?
A
End of night EEG shows fast activity fMRI shows increased brain activity Atonic muscles Increased cerebral blood flow impaired thermal regulation Narrative dealing
4
Q
What is the only way to regain lost sleep?
A
Deep sleep - allows cortex to recover
5
Q
How many hours per day do Neonates sleep for?
A
16
6
Q
How long is the normal Carcadian Rhythm?
A
24 hours 20 minutes (25 hours)
7
Q
What does the retinal ganglion cell project to?
A
Suprachiasmatic nucleus
8
Q
What peaks during sleep?
A
Cell division (Tissue repair)
9
Q
How long should you nap for?
A
15 minutes
10
Q
How many hours sleep should you get per night?
A
7-7.5 hours
11
Q
What are clinical features of Narcolepsy?
A
Daytime sleepiness Cataplexy Hypnagogic hallucinations sleep paralysis RBD
