硬脑膜向上折起显示伸向大脑半球表面的桥静脉。外伤使其撕裂,特别是有明显脑萎缩的时候。
The dura has been reflected above to reveal the bridging veins that extend across to the superior aspect of the cerebral hemispheres. These can be torn with trauma, particularly if there is significant cerebral atrophy that exposes these veins even more.