2018-2019学年初中生物人教版七年级下同步精练 第四章 第2节 血流的管道——血管
※题型：单选题※知识点：单选题※试题难度：较易<br>分布在身体的深层,管壁厚、弹性大,管内血流速度快的是( )<br>A.动脉 B.静脉 C.毛细血管 D.无法知道<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>在显微镜下观察到的小鱼尾鳍内血液流动的示意图中(箭头表示血液流动的方向),表示毛细血管的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2018/12/20/D5D28784A9EC9C6BB3521BB59256BD53.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2018/12/20/31470924F6ABAEDFE2F37AC5A1A24152.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2018/12/20/9CAC7DD64951B2CFF8221B0D9CBE9712.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2018/12/20/9876E5FFB742D4C663EC9DA605C75D85.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/9e978a09f7a64f388d7bb30da0057678/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/4cb15ed6b8824bd9ac99a59cf886d511/ADC7A7A4241BDD8F469A70B2BF73F694.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列关于毛细血管的特点的叙述中,错误的是()<br><tbody><br>A.毛细血管的管径极细<br>B.毛细血管数量大,分布广<br>C.毛细血管的管壁非常薄<br>D.毛细血管内的血流速度最快<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/7039B1414292C98C4C0586321B67CF33.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/FA640CC5E548DA7B4E18A4B671C110D3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>护士给患者输液或者抽血时,针插入的血管是( )<br>A.动脉 B.静脉 C.毛细血管 D.主动脉<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/519D92948D63301C360B7C07385E9D17.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>静脉注射时,先用胶皮管扎紧上臂,在扎紧处一端静脉隆起,使静脉隆起的结构是()<br><tbody><br>A.动脉瓣<br>B.静脉瓣<br>C.房室瓣<br>D.毛细血管瓣<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/43017BC7FE115810A2B2E7EFE2AD1353.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>血液在血管内流速由快到慢的正确顺序是( )<br>A.动脉、静脉、毛细血管<br>B.静脉、动脉、毛细血管<br>C.毛细血管、静脉、动脉<br>D.动脉、毛细血管、静脉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/f95ce9feebbe4753ad97d71f8ec1b5a0/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>下图为人体三种血管示意图,有关说法错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/4/24/274082EDD26E4563721EEFA348C147D8.png"><br>A.血流方向是a→b→c<br>B.血流最慢的是血管b,有利于物质交换<br>C.血管a为动脉,管壁薄、血流速度慢<br>D.血管c中有瓣膜,能防止血液倒流<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/b4fc95ab54d94089bd1883cc9834a303/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/29f27ead1d06492fa327ff93d3345de1/715D4BC4096DE7CA9EAEAF755681D95C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列有关动脉血管的叙述,错误的是( )<br>A.动脉管壁厚,弹性大,管内血流速度快<br>B.在体表的个别部位也能摸到动脉,如桡动脉<br>C.动脉血管大多分布在身体较深的部位<br>D.手臂上的一条条"青筋"就是动脉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/680c4085c06749a3bdfc2b648327a43a/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/79b6886c08a643a6a24386abee9e0611/9A3F1546EB2A82127AA4D0AADD19CAD3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>病人在医院输液时,护士一般将针刺入四肢的静脉,主要原因是( )<br>A.静脉管壁较薄,弹性较小<br>B.四肢静脉中有静脉瓣<br>C.静脉能将血液从身体各部分送回心脏<br>D.静脉内血流速度较慢<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/48887a02998c4a3d93fd8db91ff8e2b6/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/8fb79f207a264c978919d506b0374db8/50CA8ED3792CEADB5768D6D19F045E9E.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>请你仔细观察三种血管的结构示意图,据图填写三种血管的比较表。<img src="https://picture1.zhihuicn.com/2/15991DD1E41D8D8C84C95B402E205D19.png"><br>style="VERTICAL-ALIGN:middle"><br><tbody><br>血管种类<br>管壁特点<br>血流速度<br>主要功能<br>动脉<br>管壁较厚,弹性<br>静脉<br>管壁,弹性<br>把血液从身体各部分送回心脏<br>毛细血管<br>管壁非常薄,只由构成<br>最慢<br>便于血液与组织细胞充分地进行物质交换 <br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/D0550E104120213B398B790B402EC3A6.png"><br>解析<br>略<br>
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