Sleep

Question 1

Recall which stages of sleep are NREM and which are REM

Answer 1

1-4 = NREM
5 = REM

Question 2

How long does the average sleep cycle last?

Answer 2

90 mins

Question 3

What structures of the brain are involved in control of sleep?

Answer 3

1. RAS
2. Lateral hypothalamus (orexin/ hypocretin)
3. Venterolateral preoptic nucleus nucleus of anterior hypothalamus
4. Suprachiasmatic nucleus

Question 4

Recall the function of the orexin/ hypocretin system

Answer 4

Promotion of wakefulness

Question 5

Which hypothalamic nucleus promotes sleep?

Answer 5

Venterolateral preoptic nucleus nucleus of anterior hypothalamus

Question 6

Which hypothalamic nucleus responds to light level to affect consciousness?

Answer 6

Suprachiasmatic

Question 7

Recall 4 somatic effects of sleep deprivation

Answer 7

Glucose intolerance
Reduced leptin
Impaired immunity
Increased CVD risk

Question 8

Recall 2 physiological causes of sleep deprivation

Answer 8

Sleep apnoea

Chronic pain

Question 9

What sort of drug can be used to treat sleep deprivation?

Answer 9

Pro-GABA drugs

Question 10

With what co-morbidity is narcolepsy associated?

Answer 10

Cataplexy

Question 11

What might cause people to act out their dreams?

Answer 11

Louis-body dementia