Chapter 1. Hypothalamus-Pituitary Axis
Introduction
Question 1.1
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Which of the following are correct descriptions about the pituitary gland? Select all that apply.
The general chemical nature of a hormone can be used to predict:
YZqRursQbQ4R6IcA The pituitary gland controls signaling from the hypothalamus.
UxXCdiuIDfYB7iao The anterior pituitary gland is under the control of the hypothalamus.
UxXCdiuIDfYB7iao The posterior pituitary gland is under the control of the hypothalamus.
UxXCdiuIDfYB7iao The pituitary gland acts as the control center for most other endocrine glands in the body.
YZqRursQbQ4R6IcA Even though the anterior and posterior pituitary have distinctly different functions, they formed from the same embryonic tissue.
Question 1.5
Which of the following are true for the hypothalamus and pituitary gland? Select all that apply.
The general chemical nature of a hormone can be used to predict:
UxXCdiuIDfYB7iao The action of the neurons from the hypothalamus is direct for the posterior pituitary, that is, the neurons extend from the hypothalamus to the posterior pituitary where the axon terminal releases hormones that go directly into the blood.
YZqRursQbQ4R6IcA The action of the neurons from the hypothalamus is indirect for the anterior pituitary, that is, the action potentials in the neurons in the hypothalamus cause formation of new action potentials in different neurons in the anterior pituitary.
UxXCdiuIDfYB7iao Neurosecretory cells of the hypothalamus secrete releasing factors that enter the anterior pituitary via a portal system to cause release of hormones from the anterior pituitary.
YZqRursQbQ4R6IcA Release factors from neurosecretory cells of the hypothalamus cause release of hormones into the blood from the posterior pituitary gland.
YZqRursQbQ4R6IcA Release factors from the posterior pituitary stimulate release of specific hormones into the blood from the anterior pituitary.
Question 1.6
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