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5 Cards in this Set
- Front
- Back
Role of Brain in Digestion
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Limbic System: controls urges
Cerebrum: can overcome Limbic or can enhance it Hypothalamus: HUNGER center SATIETY center Neurotransmitters |
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Hunger Center
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Lateral nucleus
controlled by low glucose- inc firing stim by HYPOglycemia, sight of food Stim 20% of time LESION: dies of anorexia bc no longer have hunger signal can be assoc with anorexia nervosa/body dismorphic trying to please MOM Tx: SSRI |
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Satiety Center
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Medial Nucleus
HYPERglycemia stim by stomach distention Stim 80% of time LESION: die of hyperphagia Bullimia: trying to please BOYFRIEND Look for: knuckle abrasions, loss of enamel on teeth, use of laxatives |
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Neurotransmitters
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in hypothalamus are NE and serotonin
can contribute to both centers AMPHETAMINES cause inc release of preformed catecholamines so NE an dserotonin levels inc. and hit stiety center-not hungry |
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Amphetamines
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Dexatrim- OTC diet pill
Methylphenidate (ritalin ) - ADD, narcolepsy, depression in elderly Pemolin- ADD Adderal- ADD PCP- become violent and (+) Nystagmus Ecstacy- pt feel superhuman and dehydrated |