EOG88PQ33	GO:0005184	1/13	neuropeptide hormone activity	molecular_function	"The action characteristic of a neuropeptide hormone, any peptide hormone that acts in the central nervous system. A neuropeptide is any of several types of molecules found in brain tissue, composed of short chains of amino acids; they include endorphins, enkephalins, vasopressin, and others. They are often localized in axon terminals at synapses and are classified as putative neurotransmitters, although some are also hormones." [GOC:mah]
EOG88PQ33	GO:0005615	1/13	extracellular space	cellular_component	"That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid." [ISBN:0198547684]
EOG88PQ33	GO:0007218	1/13	neuropeptide signaling pathway	biological_process	"The series of molecular signals generated as a consequence of a peptide neurotransmitter binding to a cell surface receptor." [GOC:mah, ISBN:0815316194]