title: Neurochemistry and neural circuitry in the dorsal horn.
mesh_terms: D000344:Afferent Pathways / Q000166:cytology / Q000502:physiology; D000818:Animals; D006728:Hormones / Q000502:physiology*; D006801:Humans; D009474:Neurons / Q000166:cytology / Q000502:physiology* / Q000648:ultrastructure; D009479:Neuropeptides / Q000502:physiology*; D013116:Spinal Cord / Q000166:cytology / Q000502:physiology* / Q000648:ultrastructure
chemical_list: D006728:Hormones; D009479:Neuropeptides