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5 Cards in this Set

  • Front
  • Back
Role of Brain in Digestion
Limbic System: controls urges
Cerebrum: can overcome Limbic or can enhance it
Hypothalamus:
HUNGER center
SATIETY center
Neurotransmitters
Hunger Center
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
Satiety Center
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
Neurotransmitters
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
Amphetamines
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