Preview

Nt1310 Final Exam

Good Essays
Open Document
Open Document
587 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Nt1310 Final Exam
1. What is sleep, what are its phases and what purpose does it serve?
There are five stages of sleep;
Stage #1: Light sleep
Stage #2: Eye movement stops
Stage #3: Brain waves interspersed with slow and fast movement
Stage #4: brain produces Delta waves stage three and four are called deep sleep cycle. It is important to go through adequate sleep and get the sleep cycle run its course correctly. Our body repairs itself during sleep. Our body has an ingenious way of restoring our body as we sleep; during the day, there is a buildup of different chemicals including adenosine. All of these chemicals are what is thought to make us want to sleep. Scientists have discovered an immunity system in the brain that is called the lymphatic system. The glymphatic system is the main system that clears the waste product that build up in your brain.
2. What is a circadian rhythm?
A circadian rhythm is a “biological clock” that controls when we must sleep, and when we must wake up. This 24-hour clock has been observed in plants animals, fungi, and cyanobacteria. When someone
…show more content…
What are some symptoms of sleep deprivation?
• Yawning
• Memory Problems
• Hallucinations
• Weight Gain
• Mood-swings
• Depression
• Inability to focus
• Tired/ Exhaustion
• Not being alert
I have experienced some of these symptoms because of sleep deprivation; I have experienced yawning (most people have), inability of focus, tiredness, and not being alert. All of these that I have just mentioned are the most common, when sleep deprivation occurs.

5. Why do we dream?
No one really knows why we dream, but scientists speculate that dreams happen in the REM (random eye movement). The only thing we have right now are theories that might or might not be right. One theory is that everything that the eye saw throughout that day is sorted out throughout the dream. Another theory is that we dream to keep our brains working, as a screensaver sort of thing. One more theory is that we dream to solve

You May Also Find These Documents Helpful

  • Good Essays

    Nt1310 Final Exam Answers

    • 615 Words
    • 3 Pages

    The diameter of the shaft must be uniform throughout and there are two further design requirements : - the angle of twist between A and C must not exceed 1.5o; - the maximum permissible shaft shear stress is (MAX = 60 MPa. Determine the minimum shaft diameter that may be used, G = 77 GPa.…

    • 615 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    There are four primary stages of sleep in which human beings cycle in and out of (Pinel, 2007). The first stage is referred to as emergent sleep. During this phase EEG waves are both low voltage and high frequency. The second, third, and fourth stages are made of higher levels of EEG voltage and a decrease in frequency. The second stage of sleep mainly process two additional characteristics which are sleep spindles and K complexes (Pinel, 2007). Delta wave patterns can happen during the third stage of sleep. As the fourth stage of sleep occurs the delta waves become the most dominant pattern within an EEG (Pinel, 2007).…

    • 340 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Sleep is very important to the regulation of the body 's functions. Sleep is regulated by circadian rhythms. The circadian rhythm is controlled in the brain by an area called the suprachiasmatic nucleus which controlls around 20,000 neurons. These rhythms determine the ideal times for structured and restorative sleep and are generlly in 24 hour cycles. The exact functions of sleep are not exactly known however, those who are sleep deprived have been found to have weakened immune systems and poor brain function. According to the National Institute of Neurological Disorders and Stroke (2007), sleep gives neurons used while we are awake time to repair and that without this shutdown time they become depleted of energy and begin to malfunction. Sleep is also believed to give the brain a chance to exercise important connections that might otherwise deteriorate due to inactivity.…

    • 515 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Unit G Psychology 101

    • 880 Words
    • 4 Pages

    A. the hormone produced by fat cells that signals the hypothalamus, regulating hunger and eating behavior.…

    • 880 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Ultradian Rhythms

    • 493 Words
    • 2 Pages

    Ultradian rhythms are bodily rhythms that last less than 24 hours. The most obvious ultradian rhythm is the different stages of sleep, existing within the ciradian rhythm of the sleep-wake cycle. Sleep is dived into cycles, each lasting about 90 minutes. During these cycles, we will experience 5 different stages of sleep- the first four being characterized as non-rapid eye movement sleep (NREM), and the last stage being characterized as rapid eye movement sleep (REM).…

    • 493 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Circadian rhythm: occurs on a 24 hour cycle and include sleep and wakefulness. Termed our “biological clock”, and it can be altered by artificial light…

    • 1112 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Rapid eye movement sleep, a recurring sleep stage during which vivid dreams occur (also known as paradoxical sleep – muscles relaxed, other body systems active)…

    • 1281 Words
    • 6 Pages
    Good Essays
  • Better Essays

    Provide Support for Sleep

    • 3327 Words
    • 14 Pages

    Sleep is important for our health and well-being. Extensive research has been done on the effects of sleep. These studies consistently show that sleep plays a vital role in promoting physical health, longevity, and emotional well-being. This explains why, after a good night's sleep, we feel better, our thoughts are clearer, and our emotions are less fragile. Without adequate sleep our judgment, mood, and ability to learn and retain information are weakened.…

    • 3327 Words
    • 14 Pages
    Better Essays
  • Satisfactory Essays

    Stage 2 NREM – This stage is considered the onset of true sleep. This is when sleep spindles and K complexes appear. Sleep spindles are bursts of brain activity that last for about a second or two, and K complexes are high-voltage spikes of brain activity. Aside from these, brain activity continues to slow down during stage 2 of NREM. Breathing becomes rhythmical, and delta brain waves, which are even larger and slower than theta waves, start appearing.…

    • 79 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Biological rhythms: There are three types of biological rhythm; circadian, ultradian and infradian. Circadian rhythms are those which complete a cycle in a 24 hour period such as the sleep-wake cycle, heart rate or metabolism. People have variations within the circadian rhythms, notably the owl/lark division describing people who have biological clocks which run ahead or behind the average. Ultradian rhythms are those which occur more than once in a 24 hour period, for example eating or the sleep cycle which repeats approximately four times per night. Infradian rhythms are those which occur over a period greater than 24 hours, such as the menstrual cycle and PMS. These and SAD (seasonal affective disorder) are the infradian rhythms which have attracted the most psychological research.…

    • 9026 Words
    • 37 Pages
    Good Essays
  • Powerful Essays

    Almost all living things have a normal daily cycle they adhere to. It usually relates to the pattern developed by a function of time in relation to behavioral and physiological processes. Circadian rhythm in all mammals is a process that describes our inner master “clock” and our daily functionality. “Circadian timing is structured in such a way as to receive information from the external and internal environments, and its function is the timing organization of the physiological and behavioral processes in a circadian pattern (1)”. With the 24 hour cycle put in use we determine the sleeping and feeding patterns of all animals.…

    • 1155 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Sleep deprivation is a commonplace occurrence in modern culture. Every day there seems to be twice as much work and half as much time to complete it in. This results in either extended periods of wakefulness or a decrease in sleep over an extended period of time. While some people may like to believe that they can train their bodies to not require as much sleep as they once did this belief is false. Sleep is needed to regenerate certain parts of the body, especially the brain, so that it may continue to function optimally. After periods of extended wakefulness or reduced sleep neurons may begin to malfunction, visibly effecting a person's behavior. Some organs, such as muscles, are able to regenerate even when a person is not sleeping so long as they are resting. This could involve lying awake but relaxed within a quite environment. Even though cognitive functions might not seem necessary in this scenario the brain, especially the cerebral cortex, is not able to rest but rather remains semi-alert in a state of "quiet readiness" . Certain stages of sleep are needed for the regeneration of neurons within the cerebral cortex while other stages of sleep seem to be used for forming new memories and generating new synaptic connections. The effects of sleep deprivation on behavior…

    • 617 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The nature of sleep remains complicated, and mostly unexplainable. Sleep is necessary for all mammals. Sleep serves the body as energy conservation processes as well as letting the nervous system recuperate. This bodily recuperation process also allows emotional regulation for the body. The circadian rhythm, also known as the biological clock or circadian clock, regulates the sleep-wake cycle. The circadian clock is located in a group of cells just behind the optic nerve, called the Suprachiasmatic nucleus. Because the Suprachiasmatic nucleus is located behind the optic nerve, it is extremely sensitive and highly responsive to changes of light externally.…

    • 615 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Biological Rhythms

    • 546 Words
    • 2 Pages

    A circadian rhythm is a roughly 24-hour cycle in the biochemical, physiological, or behavioural processes of living entities, Although circadian rhythms are endogenous ("built-in", self-sustained), they are adjusted (entrained) to the environment by external cues called zeitgebers, the primary one of which is daylight.…

    • 546 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    Sleep stages two, three and four are called slow-wave sleep. About half of the time in these stages, people report that nothing happened, the other 50-60% of the cases, report that they were thinking about something. These thoughts are called sleep thoughts that involve some issue or event that a person has been concerned with during a previous day. Sleep thoughts are not considered actual dreams because they lack the action in a real dream. Almost all people who are awakened during REM sleep almost always confirm they had been experiencing realistic events called a true dream. A true dream…

    • 1061 Words
    • 5 Pages
    Powerful Essays