An endocrine gland is a type of gland which secretes hormones directly into the bloodstream., An exocrine gland is a type of gland which secretes hormones via duct or opening to the surrounding surface., The endocrine system is composed of several, unconnected glands throughout the body., The main functions of the endocrine system is to produce and secrete hormones., Hormones secreted in the endocrine system are from ductless glands in the body., Hormones act as chemical messengers to communicate around the body in response to stimuli., An example of a hormone controlled by a positive feedback mechanism is oxytocin., The endocrine system contributes to homeostasis, cell growth and metabolism., The endocrine system works in connection with the autonomic nervous system., Examples of endocrine glands include the thyroid, pancreas and gonads.,

Endocrine System Introduction

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