CCSH Exam 1 Questions with Verified Correct
Answers
HR, RR and blood pressure variability during NREM sleep
HR, RR and blood pressure all stable
Skeletal muscle tone in NREM vs REM sleep
Preserved during NREM, absent during REM
Response to CO2 and O2 during NREM sleep
same as awake
temperature changes during NREM sleep
homeothermic
temperature changes during REM sleep
poikilothermic (inability to regulate body temp)
HR, RR and blood pressure variability during REM sleep
HR, RR irregular, blood pressure variable
Brain O2 consumption, response to O2 and CO2 during REM sleep
O2 consumption increased, response to CO2 decreased, response to O2 same as awake
duration of SWS/N3 after successive NREM cycles
shortens in duration
what are the 3 markers of the circadian rhythm
body temperature, melatonin and cortisol
,Amount of hrs newborns sleep
16-18
Number of hours of sleep from 4 mons to 1 yr of life
14-15hrs
Duration of sleep from ages 2 to 5
10-12
Length and type of sleep by 10 years
10hrs of monophasic sleep
Duration of sleep in adolescents
8-9 hrs
Duration of sleep in adulthood
7-8 hrs
Changes in N3 sleep from early adulthood to midlife
N3 descreases, replaced by N1 and N2
Respiration changes in NREM vs REM sleep
NREM slow and regular, REM sleep irregular w/increased rate and hypopneas
Changes in minute ventilation in NREM vs REM sleep
decrease in both
Changes in PCO2, O2 and O2 sat in NREM vs REM sleep
PCO2 increases, O2 and sats decrease
, Where are orexins produced
in the hypothalamus
What hormone links the GI system and the hypothalamic orexiginic pathway
Ghrelin
When do leptin levels peak
during sleep
What is the timing of the nadir or minimum sleep temp?
around 4 am
What time does body temp peak
around 6pm
During what time is the propensity for REM sleep highest?
During the early morning
Wakefulness and consciousness are maintained by what part of the brain
the ascending reticular activating system
The main function of what part of the brain is to relay motor and sensory signals to the
cerebral cortex and regulate sleep, alertness and wakefulness
the thalamus
In what mode does the thalamus function during NREM sleep?
Oscillatory which inhibits transmission of sensory information
In what mode does the thalamus function during Wake and REM sleep
Answers
HR, RR and blood pressure variability during NREM sleep
HR, RR and blood pressure all stable
Skeletal muscle tone in NREM vs REM sleep
Preserved during NREM, absent during REM
Response to CO2 and O2 during NREM sleep
same as awake
temperature changes during NREM sleep
homeothermic
temperature changes during REM sleep
poikilothermic (inability to regulate body temp)
HR, RR and blood pressure variability during REM sleep
HR, RR irregular, blood pressure variable
Brain O2 consumption, response to O2 and CO2 during REM sleep
O2 consumption increased, response to CO2 decreased, response to O2 same as awake
duration of SWS/N3 after successive NREM cycles
shortens in duration
what are the 3 markers of the circadian rhythm
body temperature, melatonin and cortisol
,Amount of hrs newborns sleep
16-18
Number of hours of sleep from 4 mons to 1 yr of life
14-15hrs
Duration of sleep from ages 2 to 5
10-12
Length and type of sleep by 10 years
10hrs of monophasic sleep
Duration of sleep in adolescents
8-9 hrs
Duration of sleep in adulthood
7-8 hrs
Changes in N3 sleep from early adulthood to midlife
N3 descreases, replaced by N1 and N2
Respiration changes in NREM vs REM sleep
NREM slow and regular, REM sleep irregular w/increased rate and hypopneas
Changes in minute ventilation in NREM vs REM sleep
decrease in both
Changes in PCO2, O2 and O2 sat in NREM vs REM sleep
PCO2 increases, O2 and sats decrease
, Where are orexins produced
in the hypothalamus
What hormone links the GI system and the hypothalamic orexiginic pathway
Ghrelin
When do leptin levels peak
during sleep
What is the timing of the nadir or minimum sleep temp?
around 4 am
What time does body temp peak
around 6pm
During what time is the propensity for REM sleep highest?
During the early morning
Wakefulness and consciousness are maintained by what part of the brain
the ascending reticular activating system
The main function of what part of the brain is to relay motor and sensory signals to the
cerebral cortex and regulate sleep, alertness and wakefulness
the thalamus
In what mode does the thalamus function during NREM sleep?
Oscillatory which inhibits transmission of sensory information
In what mode does the thalamus function during Wake and REM sleep
