The endocrine system is in charge of regulating body activities by secreting hormones. Hormones are carried into the tissues and organs of the body by the bloodstream.

Once a stimulus is detected, the endocrine system releases signals, which are in the form of hormones in the bloodstream, to regulate the activities of the cells in our body. For example, if the body has detected a stimulus, which in this case is a high blood sugar level in the body, the endocrine system gives the signal to the pancreas to produce insulin. Insulin is a hormone that regulates the blood sugar level in the body.

Endocrine glands secrete essential substances (hormones) which then circulate through the blood before reaching the “target organ”. Exocrine glands secrete essential substances which then, unlike endocrine glands, travel directly to the target area through tube-like structures called ducts.

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Prostaglandins are hormone-like substances that are produced when there is a chemical reaction at the site where the cell or tissue is affected; hence, the term “local hormones.” These substances cause contraction, pain, fever, inflammation, or clotting when the nearby cells or tissues are damaged.

The **endocrine system** is composed of various glands that function to create hormones that be used in the maintenance of homeostasis, growth, reproduction, and development of an individual.

The endocrine system works hand-in-hand with the nervous system as it sends signals to the nervous system to initiate control and regulation of the production and secretion of hormones in the body. On the other hand, the **nervous system** receives and processes information from the stimuli, thus sending an electrical signal to the glands for the creation of a specific response.