MIT9_14S09_prob27a

MIT9_14S09_prob27a - 9.14, MIT, Spring 2009 Classes #27-29a...

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9.14, MIT, Spring 2009 Classes #27-29a Questions on readings: Brodal, also Schneider chapter. 1. Which major hypothalamic division can be divided into multiple distinct nuclei (e.g., by Le Gros Clark in 1936)? How can the remainder of the hypothalamus be characterized? 2. How can a circulating hormone like angiotensin II control hypothalamic neurons even though it does not pass through the blood-brain barrier? 3. What is diabetes insipidus? 4. What is the importance of afferents to the hypothalamus from the nucleus of the solitary tract in the hindbrain? 5. The cingulate cortex (a paralimbic cortical area above the corpus callosum) projects to the hippocampal formation. Describe the pathway from there to the hypothalamus. How does a pathway go from there back to the cingulate gyrus? (The loop is called “Papez' circuit”.) (Note: Brodal on p. 400 summarizes a different pathway from cingulate cortex to hypothalamus via the septal nuclei. This is not usually mentioned as part of the Papez’ circuit.) 6. How does hypothalamus send influences to the cerebral cortex? 7.
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MIT9_14S09_prob27a - 9.14, MIT, Spring 2009 Classes #27-29a...

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