what is the function of endocrine system
The endocrine system is the system of glands, each of which secretes a type of hormone into the bloodstream to regulate the body. While powerful, the endocrine organs are relatively small. Hormones are chemical messengers that have many different functions. In the bloodstream, the hormones travel throughout the body. Their effects vary widely, and all are important for life. Some familiar examples of hormones include insulin, thyroid hormone, and cortisol.