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concept

Endocrine System Overview

Endocrine system includes endocrine or ductless glands and their secretions called hormones.

What are hormones in the source?

Non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts.

Term	Source-backed meaning
Endocrine glands	Ductless glands
Hormones	Non-nutrient chemicals acting as intercellular messengers
Amount	Produced in trace amounts