What is an endocrine system ?

Explanation

### Step-by-Step Text Solution:

1. **Definition of the Endocrine System**: The endocrine system is a network of glands that produce and release hormones directly into the bloodstream. These hormones act as chemical messengers that regulate various functions in the body.

2. **Components of the Endocrine System**: The system is primarily composed of endocrine glands, which are specialized organs that secrete hormones. Unlike exocrine glands, which have ducts to release their secretions, endocrine glands are ductless.

3. **Function of Hormones**: Hormones released by the endocrine glands travel through the bloodstream to target organs or tissues, where they exert their effects. They play crucial roles in regulating metabolism, growth, development, and various bodily functions.

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