NU 180 Nursing and Healthcare II – Week 7
Exam 2025-2026 Questions and Answers Graded
A+ LATEST
What is sleep?
- A state during which an individual lacks conscious awareness of environmental
surroundings and from which they can be easily aroused.
- Behavioural and physiological functions are influenced by sleep. Some of these
include memory, mood, cognitivefunction, hormone secretion, glucose
metabolism, immunefunction, body temperature, and renal function
- Most adults require at least 7 hours of sleep within a 24-hour period.
What are some examples of behavioural and physiological functions that are
influced by sleep?
- Memory
- Mood
- Cognitive function
- Hormone secretion
- Glucose metabolism
- Immunefunction
,- Body temperature
- Renal function
Most adults require at least how many hours of sleep within a 24 hour period?
- 7 hours.
What are sleep disorders?
- Conditions that affect the quality of sleep and wake behaviour.
- Impacts your daily life.
What are some types of sleep disorders?
- Insomnia
- Restless legs syndrome (Willis-Ekbom disease)
- Sleep-related breathing and movement disorders
- Central disorders of hypersomnolence
- Circadian rhythm sleep-wake disorders
- Parasomnias
- Other sleep disorders
,What is the sleep-wake cycle?
- Controlled by the nervous system.
- Wake behaviour: the reticular activating system (RAS) and various
neurotransmitters and neuropeptides are involved.
- Sleep behaviour: Involves a variety of neurological structures and
neurotransmitters. (melatonin, adenosine, prostaglandin D2)
What are circadian rhythms?
- Managed by the suprachiasmatic nucleus in the hypothalamus, which helps
control sleep-wake cycles, hormone release, and body temperature.
- Synchronized by environmental light and dark periods.
- Light can be used as therapy to shift the timing of the sleep-wake rhythm.
What does the suporachiasmatic nucleus in the hypothalamus help control?
- Sleep-wake cycles
- Hormone release
- Body temperature
What is sleep onset latency?
- Most people transition from wake to sleep in 10 to 20 minutes.
, What is sleep architecture?
- The patterns of sleep stages through which we progress during out sleep period
- Sleep onset latency
- Polysomnography (PSG): Sleep study
- Non-rapid eye movement (NREM): 75-80% of sleep time, divided into 3 stages.
- Rapid eye movement (REM): accounts for 20 t0 25% fo sleep and occurs 4-5
times over a 7-8 hour sleep night.
What is non-rapid eye movememnt (NREM)?
- 75 to 80% of sleep time
- Divided into 3 stages
What is rapid eye movement (REM)?
- Accounts for 20 to 25% of sleep
- Occurs 4-5 times over a 7 to 8 hour sleep night
- Period when the most vivid dreams occur
AD
Exam 2025-2026 Questions and Answers Graded
A+ LATEST
What is sleep?
- A state during which an individual lacks conscious awareness of environmental
surroundings and from which they can be easily aroused.
- Behavioural and physiological functions are influenced by sleep. Some of these
include memory, mood, cognitivefunction, hormone secretion, glucose
metabolism, immunefunction, body temperature, and renal function
- Most adults require at least 7 hours of sleep within a 24-hour period.
What are some examples of behavioural and physiological functions that are
influced by sleep?
- Memory
- Mood
- Cognitive function
- Hormone secretion
- Glucose metabolism
- Immunefunction
,- Body temperature
- Renal function
Most adults require at least how many hours of sleep within a 24 hour period?
- 7 hours.
What are sleep disorders?
- Conditions that affect the quality of sleep and wake behaviour.
- Impacts your daily life.
What are some types of sleep disorders?
- Insomnia
- Restless legs syndrome (Willis-Ekbom disease)
- Sleep-related breathing and movement disorders
- Central disorders of hypersomnolence
- Circadian rhythm sleep-wake disorders
- Parasomnias
- Other sleep disorders
,What is the sleep-wake cycle?
- Controlled by the nervous system.
- Wake behaviour: the reticular activating system (RAS) and various
neurotransmitters and neuropeptides are involved.
- Sleep behaviour: Involves a variety of neurological structures and
neurotransmitters. (melatonin, adenosine, prostaglandin D2)
What are circadian rhythms?
- Managed by the suprachiasmatic nucleus in the hypothalamus, which helps
control sleep-wake cycles, hormone release, and body temperature.
- Synchronized by environmental light and dark periods.
- Light can be used as therapy to shift the timing of the sleep-wake rhythm.
What does the suporachiasmatic nucleus in the hypothalamus help control?
- Sleep-wake cycles
- Hormone release
- Body temperature
What is sleep onset latency?
- Most people transition from wake to sleep in 10 to 20 minutes.
, What is sleep architecture?
- The patterns of sleep stages through which we progress during out sleep period
- Sleep onset latency
- Polysomnography (PSG): Sleep study
- Non-rapid eye movement (NREM): 75-80% of sleep time, divided into 3 stages.
- Rapid eye movement (REM): accounts for 20 t0 25% fo sleep and occurs 4-5
times over a 7-8 hour sleep night.
What is non-rapid eye movememnt (NREM)?
- 75 to 80% of sleep time
- Divided into 3 stages
What is rapid eye movement (REM)?
- Accounts for 20 to 25% of sleep
- Occurs 4-5 times over a 7 to 8 hour sleep night
- Period when the most vivid dreams occur
AD
