Animation Quiz 39.1 The Hypothalamic-Pituitary-Endocrine Axis

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4 Terms

1
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<p>Refer to the table. Match each description with the appropriate structure.</p>

Refer to the table. Match each description with the appropriate structure.

1 = Posterior pituitary; 2 = Hypothalamus; 3 = Anterior pituitary

2
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In a negative-feedback loop, a hormone _______ the hypothalamus and/or anterior pituitary when the hormone levels get too _______.

inhibits; high

3
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<p>Refer to the table. The four components shown in the table are included within a negative feedback loop involving the hypothalamus and anterior pituitary. Knowing this, which statement about this system is true?</p>

Refer to the table. The four components shown in the table are included within a negative feedback loop involving the hypothalamus and anterior pituitary. Knowing this, which statement about this system is true?

When concentrations of thyroxin rise above a certain level in the blood, it triggers the hypothalamus and anterior pituitary to stop secreting TRH and TSH.

4
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Which action would you expect to be occurring in the body of a person who has been stranded in a hot desert for several hours?

The hypothalamus would be stimulating production of antidiuretic hormone in the posterior pituitary.