Physiology and Psychology Quiz
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Questions and Answers

Which nuclei project axons to the posterior pituitary?

  • Pituitary and hypothalamic nuclei
  • Supraoptic and paraventricular nuclei (correct)
  • Hypothalamic and anterior pituitary nuclei
  • Paraventricular and suprachiasmatic nuclei

    • What is the main connection between the hypothalamus and the anterior pituitary?

  • Vascular connection (correct)
  • Neural connection
  • Muscular connection
  • Hormonal connection

    • What is the function of the direct vascular link between the hypothalamus and the anterior pituitary?

  • Regulation of blood pressure
  • Regulation of body temperature
  • Hormone secretion regulation (correct)
  • Regulation of heart rate

    • Where do the sinusoidal portal hypophysial vessels carry blood to?

    <p>The capillaries of the anterior pituitary</p> Signup and view all the answers

    What characteristic makes the system from the hypothalamus to the anterior pituitary a true portal system?

    <p>It begins and ends in capillaries without going through the heart</p> Signup and view all the answers

    What type of capillaries make up the primary plexus on the ventral surface of the hypothalamus?

    <p>Fenestrated capillaries</p> Signup and view all the answers

    What is the primary function of the autonomic mechanisms integrated in the hypothalamus?

    <p>Maintaining chemical constancy and temperature of the internal environment</p> Signup and view all the answers

    What is the type of behavior regulated by the unit formed by the hypothalamus and the limbic system?

    <p>Emotional and instinctual behavior</p> Signup and view all the answers

    What is the neural connection between the hypothalamus and the posterior lobe of the pituitary gland?

    <p>Neural connection</p> Signup and view all the answers

    What is the embryological origin of the posterior pituitary gland?

    <p>It arises as an evagination of the floor of the third ventricle</p> Signup and view all the answers

    What primarily makes up the posterior pituitary?

    <p>Endings of axons from the hypothalamus</p> Signup and view all the answers

    Where do the axons that make up the posterior pituitary originate from?

    <p>The hypothalamus</p> Signup and view all the answers

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