BIOLOGY 3UU3 Lecture Notes - Lecture 4: Rapid Eye Movement Sleep, Dasyuridae, Mitochondrial Biogenesis
15 Mar 2016
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Document Summary
No organisms discovered that don"t sleep: orexins control entry into sleep and wakefulness, neurons are in hypothalamus. Deep sleep: hibernation is an extension of deep sleep. Sleep is controlled by 2 mains mechanisms: clock and homeostasis: homeostasis = necessary function you need in your life, many dysfunctions in sleep. Sleep stages: 1, 2, 3, 4 ! wave pattern increases and becomes more regular: delta wave associated with growth hormone secretion, many animals can sleep with one side of their brain as a time o o. Aquatic mammals need to come up for air. They always have brain asleep and brain awake to continuously do this. If you don"t sleep you die: have infections because immune system fails. Vladirmir demikov (1954) created 2 headed dogs and wanted to see if blood hormones could control sleep (if both dogs slept at the same time: orexin and hypocretin are the same thing o o o.
