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【单选题】

起体温调定点作用的热敏神经元位于:( )

A.
延髓温热敏感区
B.
下丘脑视上核
C.
视前区-下丘脑前部
D.
基底神经核
E.
大脑皮层
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参考解析:
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【单选题】In a purely biological sense, fear begins with the body’’s system for reacting to things that can harm us—the so-called fight-or-flight response. "An animal that can’’t detect danger can’’t stay alive...

A.
reactions of humans and animals to dangerous situations are often unpredictable
B.
memories of significant events enable people to control fear and distress
C.
people’’s unpleasant memories are derived from their feelings of fear
D.
the amygdala plays a vital part in human and animal responses to potential danger

【多选题】下运动神经元病变时见到的体征是

A.
Babinski征阳性
B.
肌张力降低
C.
肌张力升高
D.
腱反射消失
E.
腱反射亢进

【单选题】神经元尼氏体在电镜下为()

A.
溶酶体
B.
粗面内质网和游离核糖体
C.
线粒体
D.
高尔基复合体

【单选题】发热的体温调定点

A.
上移,引起的调节性体温升高
B.
下移,引起的调节性体温升高
C.
上移,引起的被动性体温升高
D.
下移,引起的被动性体温升高
E.
不变,引起的调节性体温升高