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选择性必修1:(课件图片)2-2神经调节的基本方式(1)

  • 2026-09-20 15:25:05
选择性必修1:(课件图片)2-2神经调节的基本方式(1)

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【作者按】

      我是张口聊生物,教学之余,正在将自己这几年用于教学的课件进行完善,尽可能帮助更多有需要的人,课件制作完成后我将发表在张口聊生物公众号上。但由于精力和知识有限,难免存在错误,敬请原谅,欢迎批评指正,我定会及时更正。

      本系列课件不是课堂教学的现场翻版,在原来的基础上作了适当的修订和补充。制作此课件主要目的是便于学生自主学习,同时为老师教学提供一种路径和方便,不适合直接用于课堂教学,授课者可根据各自的学情和进度进行研究适当删减。有些内容会前后重复,目的是方便学生的理解和梳理。

      课件不得用于商业用途或发表到其他平台,仅限于个人使用。

【学习目标】

1. 通过比较膝跳反射、缩手反射等不同反射的示意图,理解反射是神经调节的基本方式,反射弧是反射的结构基础,形成结构与功能观;通过分析具体实例,概括条件反射与非条件反射的区别。理解生物体通过神经系统对内外环境变化做出规律性应答,形成稳态与平衡观。(生命观念)

2. 分析反射弧各部分的作用及反射过程中兴奋的传导方向,培养逻辑思维能力。能够分析反射弧的组成及功能,培养结构识别与概念建构能力;能够比较非条件反射与条件反射的异同,理解条件反射的建立和消退机制,培养归纳推理与行为调控意识。 (科学思维)

3. 通过分析缩手反射和膝跳反射,探究反射弧的完整性对反射活动的重要性;通过条件反射的建立过程,探究学习与记忆的神经机制。并学会设计简单实验,观察、记录和分析实验现象,培养实验设计与实施以及获取和处理信息的能力。(科学探究)

4. 认识反射活动对机体适应环境的重要性,理解条件反射在学习和生活中的意义(如习惯养成、技能训练)。了解神经系统调节的基本方式,关注神经系统相关疾病,认识到健康生活方式对神经系统正常功能的重要性。(社会责任)

实战训练

1.下列关于反射的说法,正确的是(         )

A.直接刺激传出神经引起效应器发生相应的反应属于反射

B.一个完整的反射活动至少需要一个神经元才能完成

C.反射是生物适应环境的一种方式,因此所有生物都能进行反射活动

D.反射的完成需要完整的结构基础和适宜强度的刺激

答案:D

2.如图是与缩手反射有关的神经结构,若用麻醉剂阻断图示中的某一个位点并给予感受器适宜强度的刺激,下列分析中正确的是(      )

A.若阻断位点①,病人手有反应,也有感觉

B.若阻断位点②,病人手有反应,但无感觉

C.若阻断位点③,病人手没有反应,但有感觉

D.若阻断位点④,病人手没有反应,也无感觉

答案:D

3.“小儿麻痹症”是由于病毒侵染了位于脊髓的传出神经元的细胞体,而传入神经元及神经中枢未受到侵染,所以严重的小儿麻痹症患者会表现出下肢(           )

A. 能运动,对刺激有感觉           B. 运动障碍,对刺激有感觉

C. 能运动,对刺激无感觉           D. 运动障碍,对刺激无感觉

答案:B

4. 某人腰椎部位因受外伤造成右侧下肢运动障碍,但刺激右侧下肢有感觉。受伤的腰椎部位与右侧下肢的反射弧如图所示,其中③④分别表示腰椎部位的神经中枢的背部侧和腹部侧,该病人受损伤的具体部位可能是(         )

A.①②             B.③④

C.④⑤             D.⑤⑥

答案: C

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000712s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000738s ]
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  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000374s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000603s ]
  6. SELECT * FROM `set` [ RunTime:0.000327s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000675s ]
  8. SELECT * FROM `article` WHERE `id` = 530219 LIMIT 1 [ RunTime:0.000373s ]
  9. UPDATE `article` SET `lasttime` = 1789934755 WHERE `id` = 530219 [ RunTime:0.001420s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000321s ]
  11. SELECT * FROM `article` WHERE `id` < 530219 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000444s ]
  12. SELECT * FROM `article` WHERE `id` > 530219 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000399s ]
  13. SELECT * FROM `article` WHERE `id` < 530219 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000592s ]
  14. SELECT * FROM `article` WHERE `id` < 530219 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000653s ]
  15. SELECT * FROM `article` WHERE `id` < 530219 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000656s ]
0.090751s