Which of the following statements best describes the relationship between the hypothalamus and the posterior pituitary in the normal functioning of the endocrine system?
A) Posterior pituitary hormones are constituted from components of both the hypothalamus and the pituitary gland itself.
B) The posterior pituitary gland regulates the release of hypothalamic hormones.
C) Posterior pituitary hormones are produced in the hypothalamus but released from the pituitary gland.
D) The hypothalamus regulates the production and release of posterior pituitary hormones by the pituitary gland.
Ans: C
Feedback:
The posterior pituitary hormones, ADH and oxytocin, are synthesized in the cell bodies of neurons in the hypothalamus that have axons that travel to the posterior pituitary, where they are released when needed. The two glands do not contribute components that are subsequently combined.
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