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Q. Global alteration of brain functioning - Sleep?
Sleep involves a global alteration of brain functioning, and occupies one third of our lives, The transition from waking to sleep is one of the most dramatic natural alterations in consciousness. Sleep is differentiated from waking state by reduction in neuronal responsiveness, inattention to sensory stimuli, and loss of consciousness. These two states differ fundamentally in most physiological parameters including the activity of a variety of key neurotransmitter systems.
Sleep Structure: Electroencephalogram (EEG) recordings reveal the two most basic states of sleep - REM (Rapid Eye Movement) sleep and NREM sleep. NREM comprises of four stages (Stages1 to 4). EEG pattern of wakeful state and different stages of sleep is explained further.
Active wakefulness: It is accompanied by low amplitude, high frequency beta waves. In relaxed wakefulness with eyes closed, the brain emits alpha waves. Alpha waves are low amplitude brain waves of about 8 to 13 cycles per second.
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in humans, maleness of is determined by a pair of sex chromosomes called X and Y. (a)what is the genotype for males? (b)what is the genotype for females?
Early human studies are normally conducted in healthy subjects to assess acute safety and, if applicable, to monitor biochemical and pharmacological responses. These studies also p
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How does the addition of a watery secretion to the contents of the gut help in the process of digestion?
Molecular Biology - transgenesis Difficult to successfully insert the gene then successfully re-implant embryo possible pleiotropic effects low success rate / tak
Give detailed structure of gills,book lungs
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