Chapter 43 And 47 Flashcards
What is the primary function of sleep?
Sleep is essential for physiological and psychological restoration, cognitive function, memory consolidation, immune function, and tissue repair.
Lack of sleep can lead to impaired judgment, mood disturbances, and health problems like hypertension and diabetes.
Which systems and substances regulate sleep?
Sleep is regulated by the circadian rhythm, sleep-wake cycle, hypothalamus, reticular activating system (RAS), serotonin, and melatonin.
These components play crucial roles in the sleep process.
List factors that promote sleep.
- Maintaining a consistent sleep schedule
- Creating a comfortable sleep environment (dark, quiet, and cool room)
- Engaging in relaxing bedtime routines
- Regular physical activity (not too close to bedtime)
- Avoiding caffeine, nicotine, and alcohol before sleep
These practices can significantly enhance sleep quality.
List factors that disrupt sleep.
- Stress, anxiety, and depression
- Poor sleep hygiene (e.g., irregular sleep schedule, screen time before bed)
- Medical conditions (e.g., pain, respiratory issues)
- Medications (e.g., stimulants, diuretics)
- Environmental factors (e.g., noise, temperature, shift work)
Identifying these factors is crucial for improving sleep.
Define insomnia.
Insomnia is difficulty falling or staying asleep, leading to daytime fatigue and impaired functioning.
It is one of the most common sleep disorders.
What is sleep apnea?
Sleep apnea is characterized by repeated interruptions in breathing during sleep, often associated with snoring and excessive daytime sleepiness.
It can have serious health implications if untreated.
What is narcolepsy?
Narcolepsy involves uncontrollable episodes of sleep during the day, often accompanied by cataplexy (sudden muscle weakness).
This disorder can severely impact daily life.
What are the symptoms of Restless Legs Syndrome (RLS)?
RLS is characterized by uncomfortable sensations in the legs with an urge to move them, worsening at night.
This condition can disrupt sleep significantly.
Define parasomnias.
Parasomnias are unusual behaviors during sleep, such as sleepwalking, night terrors, or sleep talking.
These behaviors can be alarming and impact sleep quality.
True or False: Lack of sleep can affect immune function.
True
Sleep plays a critical role in maintaining immune health.
Fill in the blank: The _______ regulates the sleep-wake cycle.
[circadian rhythm]
This biological clock influences sleep patterns.
What role does the reticular activating system (RAS) play in sleep?
The RAS is involved in regulating wakefulness and sleep.
It helps to maintain alertness and attention.
True or False: Engaging in relaxing bedtime routines can help promote sleep.
True
Such routines signal the body that it is time to wind down.
What is the definition and importance of sleep?
Sleep is essential for health and well-being, playing a crucial role in physiological and psychological restoration.
Sleep contributes to overall health by aiding in recovery and maintaining mental health.
What regulates sleep in the body?
The central nervous system, particularly the hypothalamus, regulates sleep control.
Neurotransmitters and hormones also play significant roles in sleep induction and maintenance.
What are the characteristics of Non-Rapid Eye Movement (NREM) sleep?
NREM sleep consists of four stages characterized by physiological changes from light to deep sleep.
Each stage has distinct features and varying levels of brain activity.
What is Rapid Eye Movement (REM) sleep and its importance?
REM sleep features dreaming and increased brain activity, crucial for cognitive functions like memory consolidation.
It is vital for learning and emotional regulation.
What role does NREM sleep play in physiological restoration?
NREM sleep aids in tissue repair, growth, energy conservation, and metabolic regulation.
It is essential for physical recovery during sleep.
What is the average sleep duration for neonates?
Neonates require an average of 16 hours of sleep per day with sleep cycles lasting 40-50 minutes.
They have a high proportion of REM sleep.
How much sleep do toddlers (1-3 years) need?
Toddlers need 11-14 hours of sleep per day, often experiencing bedtime resistance and night awakenings.
Sleep patterns in this age group can be inconsistent.
What are common sleep requirements for adolescents (13-18 years)?
Adolescents are recommended to get 8-10 hours of sleep, often facing challenges due to social and academic pressures.
Delayed sleep phase is common in this age group.
What factors can influence sleep quality?
Factors include:
* Physical illness
* Lifestyle
* Emotional stress
* Exercise and fatigue
* Dietary habits
* Environmental factors
Each of these can disrupt sleep patterns and quality.
What characterizes insomnia?
Insomnia is characterized by difficulty falling or staying asleep, with various contributing factors and treatments.
It can significantly impact daily functioning.
What is sleep apnea?
Sleep apnea includes obstructive and central types, with symptoms like interrupted breathing during sleep.
Management strategies vary based on the type and severity.