健康人在精神紧张时常有明显的出汗现象,说明     A.此时人体的

健康人在精神紧张时常有明显的出汗现象,说明

    A.此时人体的内环境稳态失调        

B.此时人体激素分泌没有变化

    C.汗腺的分泌活动受神经活动影响   

D.这种情况下出汗不影响人体散热

 

答案

C

 

本题考查神经调节,健康人在精神紧张时出汗是受到神经调节的影响,健康的人所以内环境不会失调。在紧张时肾上腺素分泌增加。排汗使机体三人加快。

 

相关题目

下列关于细胞分化与细胞分裂的叙述,错误的是( ) A.生物
下列关于细胞分化与细胞分裂的叙述,错误的是( ) A.生物体的生长发育是细胞分裂和细胞分化的结果 B.细胞分化发生在生物体的整个生命进程中 C.
(2011衢州)稻-鸭-萍共作是一种新兴的农业模式,其中水
(2011衢州)稻-鸭-萍共作是一种新兴的农业模式,其中水生植物红萍(俗称满江红)适于阴暗的环境生存,可作为鸭子的饲料,鸭子能吃有害昆虫,
    Sadness is unpleasant, and in a society where personal happiness is prize
    Sadness is unpleasant, and in a society where personal happiness is prized above all else, there is little tolerance for falling in despair. Especially now we’ve got drugs for getting rid of
Not until he went through real hardship _____the love we have for our families
Not until he went through real hardship _____the love we have for our families is important. A. had he realized              B. did he realize           C. he realized   
番茄果皮红色(R)对黄色(r)为显性,若将纯种红色番茄的
番茄果皮红色(R)对黄色(r)为显性,若将纯种红色番茄的花粉授到黄色番茄的柱头上,则黄色番茄植株上所结番茄的果皮将是 A.黄色,基因型为rr  
—Can we meet tomorrow afternoon? —Not in the afternoon, I’m afraid. I  
—Can we meet tomorrow afternoon? —Not in the afternoon, I’m afraid. I       . A.will be working                                           B.am
影响旅游安全的因素主要包括      ( )。 ①自然灾害 ②旅
影响旅游安全的因素主要包括      ( )。 ①自然灾害 ②旅游硬件设施情况 ③社会文化环境 ④旅游地的经济水平 A.①②③  B.①③④ C.①②④ 
---- The government should think about the medical reform again, in my opinion.
---- The government should think about the medical reform again, in my opinion. ---- ________________. The medical services and efficiency are not good at the moment. A. You can’t be serious  

最新题目