The nurse overhears a physician talking about the "master gland." What gland does the nurse recognize is being discussed?
A) The pituitary gland
B) The hypothalamus gland
C) The thyroid gland
D) The parathyroid gland
B
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Scientists now designate the hypothalamus as the master gland because it has even greater direct regulatory effects over the neuroendocrine system, including stimulation of the pituitary gland to produce its hormones. The pituitary gland was formerly considered the master gland, but new research has helped scientists realize it is the hypothalamus that is the master gland.
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