Study Questions for Chapter 16: The Endocrine System 1. Distinguish between exocrine and endocrine glands. 2. Compare and contrast the roles of the nervous system and endocrine system in maintaining homeostasis. 3. Define “hormone”. 4. Name and locate the major endocrine organs. 5. Why is the hypothalamus considered a neuroendocrine organ ? 6. Hormones can be classifed by their chemistry, by solubility in water and by their mechanism of action. Name the classes for each category and explain the basis for classification. 7. Describe 2 pathways/mechanisms by which hormones can alter cell activity. 8. What functional role do cyclic nucleotides play in these mechanisms? 9. What determines the ability of a target cell to respond to a hormone? 10. Describe the three ways that hormones influence each other’s activity at target cells. 11. Name the 3 classes of stimuli eliciting hormone release and describe each one enough that they can be distinguished from each other. 12. Name the anatomic regions of the pituitary gland. What is another name for the pituitary
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