Sleep

Question 1

What are the two types of sleep?

Answer 1

Non-REM sleep (deep)

REM sleep

Question 2

What happens in non-REM sleep?

Answer 2

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

Question 3

What is REM sleep?

Answer 3

End of night
EEG shows fast activity
fMRI shows increased brain activity
Atonic muscles
Increased cerebral blood flow
impaired thermal regulation
Narrative dealing

Question 4

What is the only way to regain lost sleep?

Answer 4

Deep sleep - allows cortex to recover

Question 5

How many hours per day do Neonates sleep for?

Answer 5

16

Question 6

How long is the normal Carcadian Rhythm?

Answer 6

24 hours 20 minutes (25 hours)

Question 7

What does the retinal ganglion cell project to?

Answer 7

Suprachiasmatic nucleus

Question 8

What peaks during sleep?

Answer 8

Cell division (Tissue repair)

Question 9

How long should you nap for?

Answer 9

15 minutes

Question 10

How many hours sleep should you get per night?

Answer 10

7-7.5 hours

Question 11

What are clinical features of Narcolepsy?

Answer 11

Daytime sleepiness
Cataplexy 
Hypnagogic hallucinations
sleep paralysis
RBD