问题
单项选择题
吗啡引起瞳孔缩小是由于：
A．吗啡激动导水管周围阿片受体
B．吗啡激动中脑盖前核阿片受体
C．吗啡激动边缘系统阿片受体
D．吗啡激动孤束核阿片受体
E．激动蓝斑核阿片受体
答案
参考答案：B
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吗啡引起瞳孔缩小是由于：
A．吗啡激动导水管周围阿片受体
B．吗啡激动中脑盖前核阿片受体
C．吗啡激动边缘系统阿片受体
D．吗啡激动孤束核阿片受体
E．激动蓝斑核阿片受体
参考答案：B
| 阅读理解。 | ||||||||||||
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