Which one of the following pair of organs includes only the endocrine glands?
Correct answer: C. Parathyroid and adrenal
- A. Thymus and testes
- B. Adrenal and pancreas
- C. Parathyroid and adrenal
- D. Pancreas and parathyroid
Explanation
Parathyroid and adrenal glands are the endocrine glands because they manufacture hormones and secrete them directly into the blood stream to act at distant sites in the body. Thyroid and pituitary are its other examples.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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