Most of the accessory meningeal artery appeared before it went into foramen spinosum. 大部分脑膜副动脉入棘孔以前发出,起源于脑膜中动脉者22侧(73%)。
The vagus nerve originated from the lateral aspect of the medulla together with the accessory nerve and the glossopharyngeal nerve emerges from the cranium through the foramen lacerum. 迷走神经起自延髓侧面,同副神经、舌咽神经由破裂孔出颅腔,可分成额、胸、腹三段。