Outline and Evaluate an Ultradian Rhythm - 465 Words.
These bodily rhythms have implications for behavior, emotion and mental processes. There are 3 types of bodily rhythms: Circadian rhythms: follow a 24-hour cycle: e.g. the sleep-waking cycle; Ultradian rhythms: occur more than once a day: e.g. the cycles of REM and NREM sleep in a single night’s sleep.
One of the rhythms we consider is the ultradian rhythm of sleep. This leads us almost seamlessly into a discussion of the nature and possible explanations of sleep. Sleep is still an enigma. We spend longer practising this behaviour than any other. An adult living to an average age of around 80 years will have spent over 25 of those asleep.
Another biological rhythm is infradian rhythms such as hibernation, seasonal affective disorder (SAD) and the menstrual cycle. Some infradian rhythms are greatly influenced by exogenous zeitgebers. For example, seasonal affective disorder is a cycle that happens once a year during the winter months that cause certain types of people to become clinically depressed.
Ultradian Those that last less than a day. Can you think of any? Although the sleep wake cycle follows a circadian rhythm, the stages of sleep follow an ultradian one. There are five stages to sleep: 4 stages of NREM 1 stage of REM These five stages make up 1 cycle which lasts 90.
Get Essay These Ultradian cycles are the sleep stages lasting 90-120 minutes, however some other ultradian cycles include hormone release, heart rate, nostril dilation and appetite. Lastly there is Infradian which are outside our circadian 24-hour cycle such as the menstrual cycle and hibernation.
Circadian rhythms are rhythms that tend to last about 24 hours. The most common circadian rhythms are the sleep wake cycle and the body temperature cycle. The sleep wake cycle is seen as being controlled by external cues also known as exogenous zeitgebers such as light, clocks, food and social interaction which may be the reason why we go to sleep at night and wake up during the day.
There was still pain in the same Towards evening the abdominal distension became very aggravated, So much so that, ultradian rhythm essay topics the pressure on the fornat was seriously imped- Ing his respiration, the question of aspiration of the intestine was con- Slight result Following the enema a gltiss tube was inserted into the Rectum, and a little flatus escaped.