Endocrine system
Endocrine glands
- Hormones are secreted by endocrine glands such as the pituitary gland, thyroid gland, adrenal gland, pancreas etc.
- Major endocrine glands in humans are
- Pituitary
- Hypothalamus
- Pineal
- Thyroid
- Thymus
- Pancreas
- Adrenal
- Testis in men /ovary in women
- A feedback mechanism (positive and negative) regulates the action of the hormones.
Characteristics of hormones:
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Hormones act as chemical messengers.
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They are secreted by living cells/tissues or organs called glands.
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They are secreted in very small quantities by g…
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