第三节神经调节的基础方式.ppt

小狗钻火圈 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 小猴骑车 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 红灯停 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 学生读书 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. A1 A2 B1 B2 B3 B4 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 非条件反射：人和动物生来就 有的先天性反射。 条件反射：人和动物在生活过 程中形成的后天性 反射。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1、当你的手突然碰到很烫的东西，你会有什么反应呢？ 2、当一个物体在你眼前突然出现时，你又会有何反应呢？ 谈感受 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 反射是神经调节的基本方式 那么什么是反射呢？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 膝跳反射 方法步骤 每两位同学一组，两人轮换进行实验。 1.一位同学作为受试者坐在椅子上，一条腿着地，另一条腿自然地搭在这条腿上。 2.另一同学用手掌内侧的边缘，迅速叩击一下受试同学上面那条腿膝盖下面的韧带，同时观察这条腿有什么反应。 请大家观看下面的演示实验 请大家阅读课本14页实验目的要求及步骤。 实验 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 演 示 实 验 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 两人一组做分组实验 做实验时请大家注意： （1）叩击部位：膝盖下方韧带。 （2）叩击时机：受试者放松且未注意。 （3）叩击力量：不一定要很大，但速度要快。 做一做 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1.叩击韧带时，小腿有什么反应？想一想，这种反应是生来就有的，还是生活中逐渐获得的？ 2.膝跳反射需要大脑参与吗？为什么？ 叩击韧带时，小腿以膝盖为轴，突然地跳起来──迅速前伸。这种反