HMB200 Final Test Latest Update

HMB200 Final Test Latest Update Infradian rhythm example - Answer Menstrual cycle Ultradian rhythm example - Answer Feeding What RAS leads to arousal when stimulated - Answer Reticular formation Why can coma occur - Answer Injury to dorsal pontine reticular formation Four reasons we need sleep - Answer - waste clearance - healing - development - maintaining learning and memory when are theta waves seen - Answer nrem1 and nrem2 when are beta waves seen - Answer during wake when are alpha waves seen - Answer sleepy when are delta waves seen - Answer nrem 3 and nrem 4 how does sleep change with age - Answer Less sleep overall; big decrease in stage 2 and 3, increase in awakenings, longer latency to fall asleep What makes waking EEG when animal is alert but immobile - Answer Cholinergic cells in the basal forebrain What makes waking EEG when the animal is moving - Answer Serotonergic ce lls in the raphe How does sleep atonia occur during REM - Answer Subcoerulear nucleus (SLD) --> GiV --> inhibits skeletal motor neurons What does suppression of REM cause - Answer - reduced hippocampal neurogenesis - immune dysfunction - mood disruption What is a cause of cataplexy and narcolepsy - Answer Loss of orexin neurons in