Physiology of Sleep

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Physiological effects of sleep• Sleep,• Helps the maintenance of normal activitylevel of CNS.• Helps to maintain the “balance” between thedifferent parts of the CNS.• Increased sympathetic activity and muscle toneduring the awake period decreases with sleep...
Physiological effects of sleep• Body temperature drops, energy loss decreases• Growth hormone and cortisol secretion• Phosphate excretion from kidneys increase• Melatonin secretion increases• Skin and tissue repair
Page 2 and 3: Reticular Formation (Reticular acti
Page 4 and 5: Sleep• Loss of wakefulness• A f
Page 7: Sleep centers2. *“Medullary synch
Page 10 and 11: Why do we sleep?
Page 12 and 13: Sleep-Wake Cycle: Biological Rythms
Page 15: Slow-Wave (nonREM) Sleep• Entranc
Page 18 and 19: Phase-1 nonREM• Transition period
Page 21 and 22: Phase-3 nonREM• Half-way deep sle
Page 23 and 24: Sleep Stages-EEG
Page 25 and 26: REM Sleep• 5-30 minutes with 90 m
Page 27 and 28: Possible causes of REM Sleep• ACh
Page 30 and 31: Typical sleep phases in night sleep
Page 33 and 34: Cortical activity during sleep
Page 35: Waking up• It is hard to wake up
Page 39 and 40: Sleep across life span
Page 41 and 42: Sleep deprivation• Prolonged wake
Page 43 and 44: Sleep disorders• Parasomnias• S
Page 45: Quote:For you to sleep well at nigh

Physiology of Sleep

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