♥ The endocrine system is a complex system as it is broken down into multiple glands each with their own function and different hormones they secrete. To narrow it down, in case you are short on time, the glands to focus on for your studies would be the pancreas and the adrenal and thyroid glands. Understanding the pancreas will help you understand diabetes, understanding the adrenal will help you understand the the emergency responses in the body and the thyroid hormone is another one good to know. The Gonads are rarely a cause for emergent nursing action.
♥ There is a lot of information given in this video so I have included another Intro to the Endocrine system (II) on the index page. It will go over the same info but with a different narrator.