Welcome to the Endocrine System. Get ready to learn about one of the most important ways that our body parts communicate! By Ryan Patton. More free lessons .\r<br>\r<br>Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate .\r<br>\r<br>Paul Andersen explains the major elements in the endocrine system. He explains how glands produce hormones which target cells. He differentiates between .\r<br>\r<br>Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based .
