结肠下区腹膜后间隙_1课件

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1、结肠下区Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.㈠小肠（空肠、回肠）全长5～6M。切除30％无碍切除50％～70％为安全限度切除80％需特殊饮食切除80％以上危及生命Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd

2、.根据位置和粘膜面的特征可分六组：(1)十二指肠(2)左腰部(3)左髂部(4)脐部(5)右腰部(6)右髂部Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.小肠系膜和小肠系膜根Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd

3、.血管:肠系膜上动脉发出的小肠动脉小肠静脉汇入肠系膜上静脉Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.㈡盲肠与阑尾盲肠高位者可达肝下，低位者可入骨盆腔5％左右的人盲肠几乎不能活动。阑尾特殊位置：高位阑尾腹膜外阑尾浆膜下阑尾Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copy

4、right2004-2011AsposePtyLtd.阑尾根部体表投影Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.阑尾动脉:多为1支（92％）阑尾静脉--临床上有两点注意：化脓性阑尾炎时，细菌栓子可随血回流入肝内；阑尾切除手术时，切勿挤压，以免栓子入血流扩散感染。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5Clie

5、ntProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.㈢结肠形态特征1结肠带（系膜带、网膜带、独立带）2结肠袋3肠脂垂分部：1升结肠2横结肠3降结肠4乙状结肠Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.血管:回结肠动脉（发自肠系膜上动脉）右结肠动脉（发自肠系膜上动脉）中结肠动脉（发自肠系膜上动脉）左结肠动脉（发自肠系膜下动脉）

6、乙状结肠动脉（发自肠系膜下动脉）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.淋巴结肠上淋巴结结肠旁淋巴结结肠中淋巴结主要淋巴结Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.㈣肝门静脉属支：肠系膜上静脉、脾静脉胃左静

7、脉肠系膜下静脉胃右静脉胆囊静脉附脐静脉Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.组成形式：肠系膜上静脉与脾静脉合成，肠系膜下静脉汇入脾静脉为Ⅰ型，占51。2％肠系膜上、下静脉与脾静脉共同合成为Ⅱ型，占15。3％脾静脉与肠系膜上静脉合成，肠系膜下静脉注入肠系膜下静脉为Ⅲ型，占32。7％其它型为数极少Evaluationonly.CreatedwithAspose.Sl

8、idesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.毗邻：右前方－胆总管左前方－肝固有动脉后方－隔网膜孔与下腔静脉相对Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5Clie