NR 226 Funds Exam 2 Review Sleep Question and answers
correctly solved 2025/2026
1. Sleep
-Individuals need ditterent amounts of sleep and rest.
’healing and
-Patients require individualized approaches based on their personal
restoration
habits, pat- terns of sleep, and the particular problem influencing sleep
24-hour, day-night cycle o Temp., HR, BP, hormone secretion, sensory
2. Circadia
acuity, & mood depends on this
n
rhythm:
3. biological clocks - internal timing devices that are genetically set to regulate various
physiological responses for ditterent periods of time.
4. Sleep regulation - physiological states integrated by central nervous system (CNS) activity.
-Hypothalamus
-Reticular activating system
(RAS) Homeostatic process
(Process S)
5. NREM sleep: 4 stages during typical 90 min. sleep cycle
6. ªStage 1 & 2: (easily aroused) light sleep
7. Stage 3 & 4: deeper sleep or "slow wave" sleep (diflcult to arouse)
8. REM sleep: Phase at end of each sleep cycle
ªIncreased brain activity with rapid eye movements, muscle atonia
9. A person 10. With each suc- cessful cycle
usually passes
through 11. N1 (formerly
stage 1)
1/
6
, -4-6 complete sleep cycles otal of 90-110 minutes NREM sleep
-Each cycle consisting of 3
stages of NREM sleep shortens, and REM sleep lengthens
-
R
E
M
s
l
e
e
p
,
f
o
r
a
t
2/
6
correctly solved 2025/2026
1. Sleep
-Individuals need ditterent amounts of sleep and rest.
’healing and
-Patients require individualized approaches based on their personal
restoration
habits, pat- terns of sleep, and the particular problem influencing sleep
24-hour, day-night cycle o Temp., HR, BP, hormone secretion, sensory
2. Circadia
acuity, & mood depends on this
n
rhythm:
3. biological clocks - internal timing devices that are genetically set to regulate various
physiological responses for ditterent periods of time.
4. Sleep regulation - physiological states integrated by central nervous system (CNS) activity.
-Hypothalamus
-Reticular activating system
(RAS) Homeostatic process
(Process S)
5. NREM sleep: 4 stages during typical 90 min. sleep cycle
6. ªStage 1 & 2: (easily aroused) light sleep
7. Stage 3 & 4: deeper sleep or "slow wave" sleep (diflcult to arouse)
8. REM sleep: Phase at end of each sleep cycle
ªIncreased brain activity with rapid eye movements, muscle atonia
9. A person 10. With each suc- cessful cycle
usually passes
through 11. N1 (formerly
stage 1)
1/
6
, -4-6 complete sleep cycles otal of 90-110 minutes NREM sleep
-Each cycle consisting of 3
stages of NREM sleep shortens, and REM sleep lengthens
-
R
E
M
s
l
e
e
p
,
f
o
r
a
t
2/
6
