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This lesson covers the endocrine (hormonal) system as required by the AQA GCSE Combined Science Trilogy specification (8464). You must be able to describe the endocrine system, name the major endocrine glands and the hormones they produce, and compare the endocrine system with the nervous system.
The endocrine system is a communication system that uses hormones to coordinate and control processes in the body. Hormones are chemical messengers that are:
Exam Tip: Hormones travel in the blood and act on target organs that have specific receptors for that hormone. If an organ does not have the correct receptor, the hormone has no effect on it.
The following table lists the glands you must know for AQA GCSE Combined Science Trilogy (8464):
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