Ch. 8 Motivation - hunger hormones
increased leptin
= decrease the appetite (diminishes the rewarding sensation of food)
increased ghrelin
= increase in appetite
increased orexin
= increase the appetite
No lat
= not fat; laterous
increased obestatin
= suppress (decrease) appetite
increased PYY (peptide YY)
= suppress appetite --> used in diet pills
Orexin
appetite stimulant; secreted by hypothalamus
ghrelin
appetite stimulant; secreted by the empty stomach
insulin
diminishes blood glucose
cortisol
hormone with stress
PYY
suppresses appetite; digestive tract hormone
Leptin
suppresses appetite; secreted by fat cells when abundant
obestatin
suppresses appetite; secreted by stomach when full; produced by the same gene as ghrelin