这样的心脏解剖学习你见过么？

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                    <section data-role="paragraph" data-color="rgb(182, 228, 253)" data-custom="rgb(182, 228, 253)"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section><p><p><img src="image/20201014/86b79d371e9862b01189f0252a03b2cd_1.png" /></p><br  /></p></section><section><section><span><strong></strong></span></section><p><span>医疗器械媒体报道先锋</span></p><p><span>分享专业医疗器械知识</span></p></section><section><section><section><span>关注</span></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section><p><br  /></p><section><section><section data-width="100%"><section data-width="100%"><section><section><p><img src="image/20201014/a69d2da503a62a39e6d27189c1d6d9e6_2.png" /></p></section></section><section data-width="100%"><section><section><span>体各组织器官要维持其正常的生命活动，需要心脏不停的搏动以保证血氧供应，心脏作为一个泵血的肌性动力器官，其解剖结构是什么样呢？</span><span>下面的教学视频，值得看看。</span><span></span></section></section></section><section data-width="100%"><section><section><p><img src="image/20201014/f3fa940f3716a4251a5a0e68c6d6a664_3.png" /></p></section></section></section></section></section></section><p><br  /></p><section data-role="outer" label="Powered by gulangu"><section data-role="paragraph"><p><strong><span>通过AI实景学习心脏解剖↓↓</span></strong><br  /></p></section></section><p><br  /></p><p><iframe src="https://v.qq.com/iframe/player.html?width=500&height=375&auto=0&vid=j0531oxvbay&auto=0" width="100%" height="580" frameborder="0"></iframe></p><p><br  /></p><section><section powered-by="gulangu"><section><section data-order="0"><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section data-role="outer" label="Powered by gulangu"><section data-role="outer" label="Powered by gulangu"><section data-tools="gulangu"><section><section><section><section><section><section><section data-width="100%"><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewbox="0 0 56.2 47.4" width="100%"><g><path d="M56.2,47.4V24.5H44.5c-1.2-10.9,6.1-20,6.1-20L44.7,0C34.3,7.9,33.3,24.5,33.3,24.5v22.9H56.2z" fill="rgb(251,205,15)"></path><path d="M22.9,47.4V24.5H11.2c-1.2-10.9,6.1-20,6.1-20L11.5,0C1,7.9,0,24.5,0,24.5v22.9H22.9z" fill="rgb(251,205,15)"></path></g></svg></section></section></section></section><section><section><section data-brushtype="text"><p><strong>心脏的位置</strong></p></section></section></section></section></section></section></section><section data-role="paragraph"><p><br  /></p></section></section></section><p><span>心位于胸腔的中纵隔内，外面包裹心包，整体向左下方倾斜，约2/3 位于身体正中线的左侧，1/3 位于正中线的右侧。</span><span>心的上方连有出入心的大血管；</span><span>下端游离于心包内，并隔心包与膈相贴；</span><span>两侧借纵隔胸膜与肺相邻；</span><span>后方有左主支气管、食管、胸主动脉等结构；</span><span>前方大部分被肺和胸膜覆盖， 只有一少部分与胸骨下份和左侧3~6 肋软骨相邻， 临床上为了不伤及肺和胸膜， 心内注射常在胸骨左缘第4 肋间进针，将药物注射到右心室内。</span><span></span></p><p><br  /></p><section data-role="outer" label="Powered by gulangu"><section data-role="outer" label="Powered by gulangu"><section data-tools="gulangu"><section><section><section><section><section><section><section data-width="100%"><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewbox="0 0 56.2 47.4" width="100%"><g><path d="M56.2,47.4V24.5H44.5c-1.2-10.9,6.1-20,6.1-20L44.7,0C34.3,7.9,33.3,24.5,33.3,24.5v22.9H56.2z" fill="rgb(251,205,15)"></path><path d="M22.9,47.4V24.5H11.2c-1.2-10.9,6.1-20,6.1-20L11.5,0C1,7.9,0,24.5,0,24.5v22.9H22.9z" fill="rgb(251,205,15)"></path></g></svg></section></section></section></section><section><section><section data-brushtype="text"><p><strong>心脏的外形</strong></p></section></section></section></section></section></section></section><section data-role="paragraph"><p><br  /></p></section></section></section><p><strong><span>心的外形似倒置的圆锥，略大于本人拳头，可分一尖、一底、两面、三缘和三沟：</span></strong></p><p><span><br  /></span></p><p><strong><span>心尖：</span></strong><span>朝向左前下方，由左心室构成，与左胸前壁贴近，在左侧第5 肋间隙、锁骨中线内侧1~2 ㎝处，可摸到心尖的搏动。</span></p><p><span><br  /></span></p><p><strong><span>心底：</span></strong><span>朝向右后上方，大部分由左心房、小部分由右心房构成，与出入心的大血管相连。</span></p><p><span><br  /></span></p><p><strong><span>两面：</span></strong><span>心的下面又称膈面，较平坦，隔心包与膈相邻，由左、右心室构成。</span><span>前面又称胸肋面， 与胸骨及肋软骨相邻， 大部分由右心房和右心室构成， 小部分由左心室构成。</span></p><p><span><br  /></span></p><p><strong><span>三缘：</span></strong><span>右缘垂直，主要由右心房构成。</span><span>左缘圆钝向左下倾斜，主要由左心耳和左心室构成。</span><span>下缘近水平位，由右心室和心尖构成。</span></p><p><span><br  /></span></p><p><strong><span>三沟：</span></strong><span>冠状沟是靠近心底处的一条近似完整的环行沟，呈冠状位，是心房与心室在心表面的分界标志。</span><span>前室间沟为胸肋面自冠状沟向心尖延伸的浅沟。</span><span>后室间沟为膈面自冠状沟向心尖延伸的浅沟。</span><span>前、后室间沟是左、右心室在心表面的分界标志。</span><span>前、后室间沟在心尖右侧的汇合处稍凹陷， 称心尖切迹。</span><span>后室间沟与冠状构的交汇处称房室交点。</span><span>所有沟内均有血管走行并被脂肪组织覆盖。</span><span></span></p><p><br  /></p><section data-role="outer" label="Powered by gulangu"><section data-role="outer" label="Powered by gulangu"><section data-tools="gulangu"><section><section><section><section><section><section><section data-width="100%"><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewbox="0 0 56.2 47.4" width="100%"><g><path d="M56.2,47.4V24.5H44.5c-1.2-10.9,6.1-20,6.1-20L44.7,0C34.3,7.9,33.3,24.5,33.3,24.5v22.9H56.2z" fill="rgb(251,205,15)"></path><path d="M22.9,47.4V24.5H11.2c-1.2-10.9,6.1-20,6.1-20L11.5,0C1,7.9,0,24.5,0,24.5v22.9H22.9z" fill="rgb(251,205,15)"></path></g></svg></section></section></section></section><section><section><section data-brushtype="text"><p><strong>心脏的体表投影</strong></p></section></section></section></section></section></section></section><section data-role="paragraph"><p><br  /></p></section></section></section><p><strong><span>心在胸前壁的体表投影可用下列四点、四弧来确定。</span></strong></p><p><span><br  /></span></p><p><strong><span>左上点：</span></strong><span>在左侧第2 肋软骨下缘，距胸骨左缘约1.2 ㎝ 处。</span></p><p><span><br  /></span></p><p><strong><span>右上点：</span></strong><span>在右侧第3 肋软骨上缘，距胸骨右缘约1 ㎝ 处。</span></p><p><span><br  /></span></p><p><strong><span>右下点：</span></strong><span>在右侧第6 胸肋关节处</span><span>。</span></p><p><span><br  /></span></p><p><strong><span>左下点：</span></strong><span>在左侧第5 肋间隙，左锁骨中线内侧1~2 ㎝处（距前正中线7~9 ㎝处）。</span></p><p><br  /></p><p><span>将四点以弧形连线相连即为心的体表投影。</span><span>左、右上点连线为心上界；</span><span>左、右下点连线为心下界；</span><span>右上、下点连线为心右界，略向右凸；</span><span>左上、下点连线为心左界，略向左凸。</span><span>了解心在胸前壁的投影， 对临床叩诊时判断心界是否扩大具有实用意义。</span><span></span></p><p><span><br  /></span></p><p><span>来源：医格心领域</span></p></section></section></section></section></section></section></section></section></section></section></section><p><span><strong><span><a data-miniprogram-appid="wxdc7efe409d688f37" data-miniprogram-path="pages/authorizationLogin/authorizationLogin" data-miniprogram-nickname="" href="" data-miniprogram-type="image" data-miniprogram-servicetype="" target="_blank" href=""><p><img src="image/20201014/7235eecc5e3d188f5fff3d4fc9e8c241_4.png" /></p></a></span></strong></span></p><p><br  /></p><section data-role="outer" label="Powered by gulangu"><section data-tools="gulangu" data-id="95124" data-color="#6aa9ad" data-custom="#6aa9ad"><section data-width="100%"><section><section><section 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