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Physiology Practice Test: The Endocrine System - Endocrine Glands and Hormone Actions
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Physiology Practice Test: The Endocrine System - Endocrine Glands and Hormone Actions
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25 Questions

1. Which of the following correctly describes a pathway for secretion of a hormone under the control of tropic hormones?
2. When the response to two hormones is greater than the sum of the individual responses, the response is described as ________.
3. A secondary endocrine organ is ________.
4. In a short negative feedback loop, a tropic hormone from the anterior pituitary inhibits the release of its own releasing hormone from the hypothalamus.
5. Growth hormone functions as both a tropic hormone and as a hormone that acts on target cells throughout the body.
6. Which of the following is a correct example of long-loop negative feedback?
7. Regulation of insulin release by blood glucose levels is an example of humoral control of hormone secretion.
8. Which of the following hormones regulates plasma calcium levels?
9. Which of the following best describes the mechanism of insulin catabolism in target cells?
10. A person has a tumor in the hypothalamus causing an excess in TRH secretion. Which of the following correctly describes changes in plasma levels of hormones?
11. What hormone released by the posterior pituitary functions in uterine contraction and milk letdown in the breast?
12. The magnitude of response at the target cell depends on both the concentration of hormone and the concentration of receptor.
13. Abnormal hormone secretions from an endocrine gland due to altered tropic hormone release are called ________.
14. What ensure(s) that blood levels of a specific releasing hormone are locally high in order to stimulate the pituitary?
15. What layer of the adrenal cortex secretes mineralocorticoids?
16. Hormones transported in blood bound to proteins are metabolized more slowly than those traveling dissolved in plasma.
17. The release of ________ from the pineal gland is important for establishing ________.
18. Which of the following hormones is NOT secreted by gonads?
19. Much of the insulin is removed from the blood as it passes through the liver.
20. A releasing hormone is a type of tropic hormone.
21. The parathyroid glands secrete calcitonin.
22. The only non-peptide/protein tropic hormone is somatostatin.
23. Which of the following endocrine organs is located in the brain?
24. Which of the following is NOT a hormone released from the anterior pituitary?
25. The release of LH and FSH by the anterior pituitary is under control of the same hypothalamic tropic hormone.

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