下肢后面浅层、臀区深层课件.ppt
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1、下肢后面浅层、臀区深层解剖Posterior superifical dissection of lower limb,deep dissection of gluteal region,皮肤切口:,一、皮肤skin,二、浅筋膜superficial fascia,1、皮神经cutaneous n.,臀上皮神经superior gluteal cutaneous n.,臀下皮神经inferior gluteal cutaneous n.,股后皮神经posterior femoral cutaneous n.,臀中皮神经middle gluteal cutaneous n.,臀上皮神经super
2、ior gluteal cutaneous n.,臀中皮神经middle gluteal cutaneous n.,臀下皮神经inferior gluteal cutaneous n.,股后皮神经posterior femoral cutaneous n.,起自足背静脉弓外侧端,经外踝后方,上行至小腿后面,穿腘筋膜注入腘静脉。,腓肠内侧皮神经medial cural cutaneous n.,腓肠外侧皮神经lateral cural cutaneous n.,腓肠神经sural n.,腓肠内侧皮神经medial cural cutaneous n.,腓肠外侧皮神经lateral cural c
3、utaneous n.,腓肠神经sural n.,2、小隐静脉small saphenous v.,小隐静脉small saphenous v.,臀大肌gluteus maximus:作用:使髋关节后伸和外旋。神经支配:臀下神经。,三、臀肌gluteus:三层three layer,浅层superficial layer:,沿臀大肌起点处切断该肌,注意勿损伤其深面的骶结节韧带,将肌向外侧翻开。靠近臀大肌处切断进入该肌的血管和神经。,阔筋膜张肌tensor fasciae latae,作用:屈髋关节和伸膝神经支配:臀上神经。,臀大肌gluteus maximus,阔筋膜张肌tensor fasc
4、iae latae,髂胫束iliotibial tract,中层middle layer:,在臀中肌的中部切断该肌并翻开,神经支配:臀中肌臀上神经梨状肌、上孖肌、闭孔内肌、下孖肌、股 方肌骶丛的肌支,臀中肌gluteus medius,梨状肌piriformis,上孖肌、下孖肌superior、inferior gemellus,闭孔内肌obturator internus,股方肌quadrarus femoris,Gluteus medius,Piriformis,Obturator internus,Quadratus femoris,gluteus medius,深层deep layer
5、,臀小肌gluteus minimus,闭孔外肌obturator internus,神经支配:臀小肌臀上神经闭孔外肌闭孔神经,臀小肌gluteus minimus,四、臀区的血管神经blood vessel and nerves of gulteal region,Lesser sciatic foramen,Infrapiriform foramen,Suprapiriform foramen,Great sciatic foramen,1.穿经梨状肌上孔的血管神经The structures through Suprapiriform foramen,臀上动脉superior glute
6、al artery,臀上静脉 superior gluteal vein,臀上神经 superior gluteal nerve,The vessels throughSuprapiriform foramen,2.穿经梨状肌下孔的血管神经The structures through Infrapiriform foramen,从外侧向内侧依次为:,坐骨神经 sciatic n.,股后皮神经 posterior femoral cutaneous n.,臀下神经inferior gluteal n.,臀下动脉及静脉inferior gluteal a/v.,阴部内动脉及静脉Internal p
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