首页 › 专项卷 › 江苏省泰州市姜堰区2019-2020学年八年级上学期期中考试生物试卷

admins 发表于 2021-8-18 22:34:55

江苏省泰州市姜堰区2019-2020学年八年级上学期期中考试生物试卷

※题型：单选题※知识点：单选题※试题难度：中等<br>用绷带将上臂扎紧时,发现前臂有血管鼓胀起来,该血管是(&nbsp;&nbsp;)<br>A.动脉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.静脉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.毛细血管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.毛细淋巴管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/913f9c16e8564756a691da763fd47067/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c5608825d9fb41f2850dd82f99001891/C510D62F152CC8DBDC36D501C4708A49.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>瓣膜的存在保证了血液按一定方向流动。下列能正确表示血液流动方向的是(&nbsp;&nbsp;)<br>A.心房→心室→心房&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.心室→心房→动脉<br>C.心房→心室→动脉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.心房→心室→静脉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2012/764fff602daa4de7941e4f7c68346278/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2012/fa85b5b28a6e40f4b22cef10e8ce69e4/96ABFA3C1F8B3B174914EF3B6A2C3F14.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>加入少量抗凝剂的血液静置一段时间后,中间的一薄层是(&nbsp;&nbsp;)<br>A.红细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.血浆<br>C.血清&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.白细胞和血小板<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d41aacbfda564fd7b1a08eac71cd9aa1/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a182a4176d7b43f09f55e7d0dafa5c11/6F1BEBA51073F1AFCC47C128597AC8B9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图为人血细胞示意图,描述错误的是(&nbsp;&nbsp;)<imgA.体积最大的是②白细胞<br>B.不易看到的是③血小板<br>C.数量最多的是①红细胞<br>D.没有细胞核的是③血小板<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/695a64c1851543f68cba65bad6ab3d0a/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/59c2c39e07ec46d2943f5c72cc7ee0de/D0914D581166F7D89AB0C1E3E48A7F50.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>具有运输氧气功能的是(&nbsp;&nbsp;)<br>A.红细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.血浆&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.白细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.血小板<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b2cad3a0d7384023b3912d95e6aec60f/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d0556f6758db46deb99e15eaf580efce/1675F83747741D1A1209F7A1EF04827A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列叙述,错误的是(&nbsp;&nbsp;)<br>A.所有动物的血液都是红色的<br>B.血浆与血清的主要区别在于血浆中含有纤维蛋白原<br>C.血液是体内物质运输的载体<br>D.红细胞中含有红色的血红蛋白所以人体血液呈红色<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/07d79c9558c8459885116e6c49244070/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/165e2de685a04594a26f63909ff70e97/328D2E75001CC06C6D63ECBBAD515A2A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下表为某人的血常规化验单,根据化验单的数据,你的初步判断是此人(&nbsp;&nbsp;)<br><tbody><br>检验项目<br>结果<br>参考范围<br>单位<br>红细胞<br>4.39<br>3.50~5.50<br>10¹²/L<br>白细胞<br>12.8<br>4.0~10.0<br>10⁹/L<br>血小板<br>140<br>100.00~300.00<br>10⁹/L<br>血红蛋白<br>130<br>120.00~160.00<br>g/L<br></tbody><br>A.贫血&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.高血压&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.白血病&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.有急性炎症<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2015/0ff02e8d5c094932bd5b5eaa793b9388/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2015/d1f4cddceae04fc09eb4291cb0a614bf/FCA6B0A9B5C3929593569F7ABB9E2374.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>一个AB型血的病人因大量出血需要输血,输入血的血型应是(&nbsp;&nbsp;)<br>A.A型&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.B型&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.O型&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.AB型<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/cca180bf221e4a1bb2a29810fca8b9d9/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/4912c4df049f409687a5cb36aeefdbce/F64B5F6082A50FD009E69361EC8F4F49.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人体内血细胞产生的部位主要是(&nbsp;&nbsp;)<br>A.心脏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.肝脏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.红骨髓&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.血液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/34acb7ceedaa464fbbcaa47c150ae48e/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/06c853bffc554b75b1c0895702ca0ce5/C284EE6299E1CA058A0354A415171500.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>静脉血与动脉血相比,静脉血(&nbsp;&nbsp;)<br>A.含氧较少&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.色泽鲜红<br>C.含营养物质较少&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.含代谢废物较多<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d1e4116caa654ab3b89eb0aaa1936cf0/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b19f05f304e746dc935cbf1ac6f708ab/6BFA0E2920CBAE4A5FD96CECAF908489.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>血液循环的动力主要来自(&nbsp;&nbsp;)<br>A.瓣膜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.主动脉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.心脏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.肺动脉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3270bca2ecba472f94452b27c41327af/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8b7a6cd1d4394c7199b55b20c9692dd5/BD6DD7104B45E0898FC3C6941D716047.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某人尿检时发现尿液中出现了血细胞,则发生病变的部位可能是(&nbsp;&nbsp;)<br>A.肾小球&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.肾小管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.输尿管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.肾小囊<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/96650c801e7346f28a37560f2006a2c3/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>神经系统的中枢部分是(&nbsp;&nbsp;)<br>A.脑和脑神经&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.脊髓和脊神经<br>C.脑和脊髓&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.脑神经和脊神经<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/21110d4c7084424aba6716e5bd29f5b0/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/265b8096975b41639e7f43e9ab8b8f13/5B7932F677AB43765FF47F0255D84ACA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>由功能相同的神经元细胞体汇集在一起,调节人体某一项相应的生理活动的结构是(&nbsp;&nbsp;)<br>A.中枢神经&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.脑&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.脑干&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.神经中枢<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6268626ad0c44befbcfe00ce923213c6/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/76e20e6a63f0429481000d085404efa2/C90B24F7511CB0846A02096DFF77CA0E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>植物人有呼吸和心跳,而躯干和四肢不能随意运动。由此推测相对完好的结构是(&nbsp;&nbsp;)<br>A.大脑&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.小脑&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.脑干&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.大脑皮层<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e584ff71db4248d49afb6721101d94d3/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8d27a2411bde45989405c1278d50d098/79DBBF8C5ED978C7A45996D1E6CCEDF9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列反射活动属于人类特有的是(&nbsp;&nbsp;)<br>A.眨眼&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.吮吸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.缩手&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.写字<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/8380a62691884380aa12394c505862d2/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b6a6a9fd030d4ac0bde9d1c1e1f053b5/64D4753AB659A6DBB5803A997E7C26A9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>条件反射是一种比较高级的神经调节方式,参与的中枢位于(&nbsp;&nbsp;)<br>A.大脑皮质&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.脑干&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.脊髓&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.小脑<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/07c9424bf58a460daf9be3a6e6b89625/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bfa2c34f5a924c0a93064c3a06d1772d/847F03E5A9DC1A9C851AEFA70F32DC33.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在“模拟眼球成像的过程”中,透镜和白纸板分别模拟眼球的(&nbsp;&nbsp;)<imgA.角膜、晶状体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.晶状体、视神经<br>C.角膜、玻璃体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.晶状体、视网膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bef618ff3c474b33ab296a0c8a96968c/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d1a9f2f73b184e77bab0c5450fd678bd/73211396CBC14FBB7A9571F05D6214C1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列不属于形成近视原因的是(&nbsp;&nbsp;)<br>A.晶状体的凸度过大&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.物象落在视网膜的前方<br>C.眼球的前后径过长&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.物象落在视网膜的后方<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/42a1a48670354afaa7c19469627aa72a/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/db1047d588194c799a21cceeec25ad3b/122B87352A60B9C116830255FA48473E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>近视眼的同学配戴的近视眼镜是(&nbsp;&nbsp;)<br>A.平面镜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.凹面镜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.凹透镜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.凸透镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b7ef26c92f394ee1a11ddf920af1f58f/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/00426907ea4c496caa1aeb801856cfc0/B5F8E3ACD3D450DADE1F6EED31BBF303.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在耳的结构中,能够将振动转变成与听觉有关的信息的结构是(&nbsp;&nbsp;)<br>A.鼓膜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.前庭&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.听小骨&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.耳蜗<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5282ddd284d942c2956c3daba55df829/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3dce98b3859c4b5dab6a33180f1ba30a/94FE53493587148D98B3BA3B09461410.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>形成听觉的部位是(&nbsp;&nbsp;)<br>A.耳蜗&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.听觉感受器&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.听神经&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.听觉中枢<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c3ccd0647eb94a80869ea4de3d5f5848/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c16586d7fbdb420ca1e1788032ecd7a3/94FE53493587148D98B3BA3B09461410.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>内耳受到感染时,很可能会使人失去平衡感而跌倒,与此有关的结构是(&nbsp;&nbsp;)<br>A.鼓膜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.耳蜗<br>C.前庭和半规管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.听觉感受器<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2cff009e1f25432dbbe8a378363e14b3/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3f8b817ccb1845ed8a6c81be0748262b/FE65DEED45016C629A67130E393184B6.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>完成下列概念图:<img <br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/116bda87c2a24cc688589bb96d25ada3/D58F03359CEEEFB7B2F77738A965F3FE.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：中等<br>完成下列填空:<br>1.血液在人体内流动,将氧气、营养物质运输到各组织、器官,是通过______循环完成的,该循环的起点是______,终点是_______。<br>2.同时,血液将人体产生的废物运输到一定的器官排出,例如_______、_______等器官。人体排泄主要是通过_______系统实现的。<br>3.在血液循环中,血液成分会发生变化,发生物质交换的场所是________,写出其适应物质交换的特点:____________________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b7fd3758500a4c569b746a3942812d33/4CBD3D0CF1588010A6A15041FC4F51C9.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：中等<br>神经系统结构和功能的基本单位是______,与其它动物细胞比较,它在结构上的特点是___________,这与它的功能是相适应的。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/515696a7692141bd934875dd771c5732/FB60B752FF73A5A7D413C5B43EA04CF5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f304370a116e4f729b0a3a34b316c248/A966FE256B1EEEEB4639DE96B4F258B9.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>下图是缩手反射示意图,其中字母C、D、A分别表示反射弧组成中的_______、______、_______。用图中字母和箭头表示神经冲动传导的方向_________________。<img <br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6c4ecb6dbee247abbb7d0beac1dc63c0/F25DAB907E57F2CC14EA7ED552DC4FAB.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/6dcafce53aba487b8b36df764248401f/CC091B19DF3D51A4C9883F4FF972069E.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>神经冲动会沿着神经纤维上下传导,这部分神经纤维分布在脊髓的_____内。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f7e1554ccba247d8adc5846897950703/785D6922DBF1D9B633CD0867DB9EC2D9.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3389e79c9f3b48fbae47358d1d2a35c0/0DF19EAB5C2867F0FF30FB1DD7176586.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>从反射的类型看,缩手反射是______反射;缩手后会疼痛感,产生痛觉的部位是______。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/aa66879acf0e4413b58b8223959c592e/EF98B50CF7570EBA674F568CA86D93FC.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ecb509aff1454bfa8b52f646ae6cab83/EE7BAA2C0D54B81DCB006BC05FC174D7.png"><br><br>

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