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| | CHAPTER 43: THE BRAIN, CRANIAL NERVES, AND MENINGES BRAIN |
 | | Anatomically, it is immediately dorsal to the optic chiasma, and the tuber cinereum (to which the infundibular stem of the hypophysis is attached) and the mamillary bodies are portions of the hypothalmus that can be seen on the ventral surface of the brain. |
 | | The hypophysis is inferior to the optic chiasm, supeior to an intercavernous venous sinus and the sphenoidal air-sinus (through which it can be approached endonasally), and medial to the cavernous sinus and its associated structures (see fig. |
 | | Hypophysial tumors, by causing pressure on the chiasm, may result in visual defects in the temporal part of the visual fields. |
| www.dartmouth.edu /~humananatomy/part_8/chapter_43.html (11001 words) |
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