Posted by lae2 on September 27, 2013 at 14:52:21:
1. The region of the interior of the skull that corresponds to the pterion is grooved by the posterior branch of the anterior meningeal artery.
2. The posterior lip of the optic chiasm contributes to the border between the anterior and middle cranial fossae.
3. The superior petrosal ridge is a topography of the temporal bone that contributes a border between the middle and posterior cranial fossae.
4. The dural sinuses are lined by endothelial cells.
5. There is a bias of venous drainage so that the right transverse sinus is typically larger than the left transverse sinus.
6. The confluence of the great vein of Galen and the inferior sagittal forms the straight sinus.
7. The intercavernous sinuses are within the diaphragma sellae.
1. Both internal jugular veins can be ligated while adequate intracranial venous drainage remains intact. Explain.
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