ista frontas asta gal cribrosa 交又南肉 Canalis opticus tulum sellae ocessus clinoideus antenor 体窝 A orsum sellae Foram fermen t oran 又神经压连 状降起 anent arcuate b 静脉孔 menu ulcus sinus transverst 悲 终a 底内面 The internal surface of the base of the skull