Communication III: The Endocrine System and Chemical Messengers

Chemical messengers: hormones chemistry; and their feedback systems, mechanisms of hormone action

Some hormones of nematodes, molluscs, annelids, arthropods, and echinoderms invertebrates; some hormones of porifera, cnidarians, platyhelminthes, nemerteans

An overview of the vertebrate endocrine system; endocrine systems of vertebrates

Miller and Harley 8th edition, 442-459