Peptides {neuropeptide} can have high concentrations in nervous-system regions and low concentrations in other cells and organs. Neuropeptides include brain-gut peptides, circulating hormones, hypothalamic releasing hormones, neurohypophyseal hormones, opioid peptides, pituitary hormones, bradykinin, carnosine, epidermal growth factor (EGF), neuropeptide Y, proctolin, and substance K. Brain hormones, such as opioids, act slowly [McEwen, 1976].
Biological Sciences>Zoology>Organ>Nerve>Neural Chemical>Hormone
4-Zoology-Organ-Nerve-Neural Chemical-Hormone
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Date Modified: 2022.0224