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下图是某种结构示意图，请据图回答问题： (1)此图表示的是 结构示意图 ，在图中能够接受刺激并产生神经冲动的结构是[ ] 。 (2) 假如此结构控制的是排尿反射，如果一个人的脊髓从胸部折断，结果此人出现大小便失禁，无法进 行有意识排尿，说明脊髓内的神经中枢受 的控制。 (3) 若此图表示某人看到酸酶分泌唾液的过程，则[1]表示眼睛的 ； (4)看到酸酶分泌唾液是 。（填“简单的反射”或“复杂的反射”）
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