Sleep

Question 0

What are the characteristics of non REM sleep?

Answer 0

Mostly at start of night
Reduced heart rate, bp, tidal volume
Non-narrative dreaming
Synchronised, rhythmic eeg
Partial muscle relaxation
Reduced cerebral blood flow

Question 1

What is sleep?

Answer 1

Normal recurring reversible state of loss of ability to respond to external environment.
Not conscious, not unconscious

Question 2

What are the characteristics of REM sleep?

Answer 2

Mostly at end of night
Fast eeg activity
Increased brain activity
Atomic muscles (except diaphragm and extra ocular muscles)
Increased cerebral blood flow
Impaired thermal regulation
Narrative dreaming

Question 3

Which is more important, deep sleep or REM sleep?

Answer 3

Deep sleep

Question 4

Why is deep sleep important?

Answer 4

Allows cortex to recover after busy day

Question 5

What stage of life has,out REM sleep?

Answer 5

Neonatal period (50% REM)

Question 6

What is the role of non REM sleep?

Answer 6

Cell division and growth

Question 7

What is the role of REM sleep?

Answer 7

Consolidates memory

Maintains immunocompetence

Question 8

What controls sleep?

Answer 8

Circadian rhythm and light

Question 9

What are the effects of not sleeping?

Answer 9

Prefrontal effects
Irritability and suspiciousness
Visual illusions
Micro sleeps and concentration lapses

Question 10

Name some non-REM parasomnias

Answer 10

Sleep walking
Sleep terrors-paralysis
Bruxism
Restless legs

Question 11

What are the characteristics of narcolepsy?

Answer 11

Daytime sleepiness
Cataplexy
Hypnagogic hallucinations
Sleep paralysis

Question 12

What investigations are done in suspected narcolepsy?

Answer 12

Overnight polysomnography
Multiple sleep latency test
Lumbar puncture