问题
单项选择题 A1型题
内囊出血所致的对侧肢体运动障碍（偏瘫），主要是损伤了（）。
A.皮质脊髓束
B.皮质红核束
C.顶枕颞桥束
D.皮质核束
E.额桥束
答案
参考答案：A
解析：内囊后肢有皮质脊髓束、丘脑辐射和视放射及听放射，其损伤时表现为三偏征对侧肢体运动障碍、感觉障碍及同向性偏盲。
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内囊出血所致的对侧肢体运动障碍（偏瘫），主要是损伤了（）。
A.皮质脊髓束
B.皮质红核束
C.顶枕颞桥束
D.皮质核束
E.额桥束
参考答案：A
解析：内囊后肢有皮质脊髓束、丘脑辐射和视放射及听放射，其损伤时表现为三偏征对侧肢体运动障碍、感觉障碍及同向性偏盲。
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