腰椎间盘突出症,出现鞍区麻木及二便功能障碍,是因为压迫
A 脊髓腰膨大部 B
马尾神经 C
脊髓圆锥 D
骶<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240405/13381953_0.gif">神经根 E
骶<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240405/13381953_0_1.gif">神经根