Chapter 10: The Endocrine System Beta
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SBI4U Biology · 10.1
Endocrine gland
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Endocrine gland
- An organ whose cells release hormones straight into the blood or tissue fluid, with no duct.
- Ductless: the hormones enter the bloodstream directly and are carried around the body
- Hormone control is slower and longer lasting than a nerve impulse
- Exocrine glands, such as sweat and salivary glands, send their secretions along ducts
- The thyroid, adrenal and pituitary glands