Hypothalamus regions {arcuate nucleus} can have main proopiomelanocortin (POMC) neurons and send to limbic system and brainstem. POMC is precursor of MSH.
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Arcuate nucleus has region for appetite and region for satiation. Ghrelin gut peptide stimulates appetite region. PYY gut peptide inhibits appetite region. Leptin hormone stimulates satiation region and inhibits appetite region. Insulin hormone stimulates satiation region and inhibits appetite region. Satiety region sends alpha-MSH to MC4 second-satiation-region receptors. Appetite region sends AgRP to second satiety region, neuropeptide Y (NPY) to second appetite region, and melanin concentrating hormone (MCH) peptide.
Biological Sciences>Zoology>Organ>Nerve>Brain>Cerebrum>Diencephalon>Hypothalamus
4-Zoology-Organ-Nerve-Brain-Cerebrum-Diencephalon-Hypothalamus
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Date Modified: 2022.0224