Endocrine System

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1. tHE ENDOCRINE SYSTEM

What is Endocrine System?

1.1     All activities such as eating, crying or walking, have one thing in common – they all involve the work of glands. Your endocrine system is composed of specialised tissues or organs called endocrine glands that produce or secrete various chemicals. Unlike other glands, the endocrine glands do not have ducts (tubes) that deliver their secretions to a particular point. Instead, they secrete chemical substance called hormones directly into the bloodstream. The main endocrine glands are the thyroid, the pituitary, the adrenals, the endocrine cells in the pancreas, and the reproductive organs. Hormones are also produced by the hypothalamus of the brain, the pineal gland, the parathyroid glands, the thymus and the walls of the stomach and the intestines.