Atlas and text-book of topographic and applied anatomy . n of the head (frozen section). Anterior view. Thesection strikes the falx cerebri, the falx cerebelli, and the tentorium cerebelli in such a way that the cranial cavity seemsto contain four apparently separate compartments, in which may be seen the two cerebral and the two cerebellarhemispheres. reaching to the dorsum of the sella turcica. The lower third of the clivus, as far down as theforamen magnum, lodges the anterior portion of the medulla oblongata which extends to theupper margin of the posterior arch of the atlas. A median sagi
Atlas and text-book of topographic and applied anatomy . n of the head (frozen section). Anterior view. Thesection strikes the falx cerebri, the falx cerebelli, and the tentorium cerebelli in such a way that the cranial cavity seemsto contain four apparently separate compartments, in which may be seen the two cerebral and the two cerebellarhemispheres. reaching to the dorsum of the sella turcica. The lower third of the clivus, as far down as theforamen magnum, lodges the anterior portion of the medulla oblongata which extends to theupper margin of the posterior arch of the atlas. A median sagittal section (see Plate 4) showsthat the pons and medulla assume an almost vertical position. It should also be observed that thecerebrum is much more exposed to external injuries than is the better protected cerebellum. As it is occasionally necessary to open the cranial cavity and expose definite regions of the Supcriur longitudinalSinus sagittalis i Lobus te Oculon Trochlear nerve Abducent nerve - Auditory nerve _ Facial perve_ i ilogsopharyiigea] n. Cerebellum- Olfactory bulb Olfactory traci lery .Ant. cerebral Aliddle cerebral Intern, carotid a. I < csUTior commu-nicating artery Post, cerebral a. Sup. cerebellar a. • Parietal bone
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