檢視人脑的原始碼

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| style="background: #008080" align= center|  '''<big>人脑</big> '''

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[[File:人脑.jpg|缩略图|居中|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1603779775443&di=fcce62dfbc53094c2930e494a4350be9&imgtype=0&src=http%3A%2F%2Fn.sinaimg.cn%2Fsinacn22%2F329%2Fw700h429%2F20180412%2F90c7-fytnfyp3549066.jpg 原图链接][https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E4%BA%BA%E8%84%91&step_word=&hs=0&pn=0&spn=0&di=69410&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3587012607%2C350463991&os=2608227006%2C4285995889&simid=4191224174%2C568765372&adpicid=0&lpn=0&ln=1697&fr=&fmq=1603769683025_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fn.sinaimg.cn%2Fsinacn22%2F329%2Fw700h429%2F20180412%2F90c7-fytnfyp3549066.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fh_z%26e3Bftgw_z%26e3Bv54_z%26e3BvgAzdH3Fw6ptvsj_m98l9m8b90_80jw8nm10aa8aa9y3g_z%26e3Bip4s&gsm=1&rpstart=0&rpnum=0&islist=&querylist=&force=undefined来自 百度 的图片]]]

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'''人脑'''(''' human brain''' )，由大脑、[[小脑]]、[[间脑]]、脑干组成。其中：[[大脑]]是[[中枢神经]]系统的最高级部分，也是脑的主要部分。分为左右两个大脑半球，二者由神经纤维构成的胼胝体相连。

大脑半球表面有许多[[弯弯曲曲]]的沟裂，称为[[脑沟]]，其间凸出的部分称为脑回。这些脑沟、脑回就像一块皱拢起来的绸布，一旦展平，它的面积像半张普通报纸大小，约2250平方厘米。