Hormones. Hormone . Hormone Receptor Agonists . Agonists, Hormone Receptor . Receptor Agonists, Hormone . Hormones, Synthetic . Hormone Analogs . Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various ENDOCRINE GLANDS and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects. . 0.62
Chordata, Nonvertebrate. Invertebrate Chordate . Chordatas, Nonvertebrate . Chordate, Invertebrate . Chordates, Invertebrate . Invertebrate Chordates . Nonvertebrate Chordata . Nonvertebrate Chordatas . A portion of the animal phylum Chordata comprised of the subphyla CEPHALOCHORDATA; UROCHORDATA, and HYPEROTRETI, but not including the Vertebrata (VERTEBRATES). It includes nonvertebrate animals having a NOTOCHORD during some developmental stage. . 0.62