ongqi ZHANG-Department of Anatomy-Fudan University Position The cadaver in the supine position Put the block under the shoulder From the upper end of the median cision. make a transverse incision along the lower border of the man- dible to the mastoid process Make a median skin incision from he mental symphysis to the suprasternal notch From the lower end of the median incision. make another transverse cision along the upper border of the clavicle to the acromid Incisions of the neck Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University
Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Incisions of the neck Position The cadaver in the supine position. Put the block under the shoulder. From the upper end of the median incision,make a transverse incision along the lower border of the mandible to the mastoid process. Make a median skin incision from the mental symphysis to the suprasternal notch. From the lower end of the median incision,make another transverse incision along the upper border of the clavicle to the acromion
Direction for the dissection of sup layer of neck Reflect the skin laterally to the ant border of the trapezius to expose the platysma directly Q Cut the platysma(located in the skin)along the upper border of the clavicle. Observe the platysma, cut it from it origin(inf end), reflect it. upward to the mandible. dont damage underlying structure 降下唇肌 border of platysma superficial upy AigImonyyI znHIVG-D omy-Fudan University
Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Reflect the skin laterally to the ant.border of the trapezius to expose the platysma directly Cut the platysma (located in the skin)along the upper border of the clavicle.Observe the platysma,cut it from it origin (inf.end),reflect it.upward to the mandible.don’t damage underlying structure. Direction for the dissection of sup. layer of neck
Direction for the dissection of sup layer of neck Dissect and observe ant jugular v (sometimes, there is a venous arch between both ant jugular vv.) Dissect and observe ext jugular V, Look for some sup cervical lymph nodes around the ext jugular v FInd cutaneous nn. greater auricular n, ant n of the neck and marginal mandibular branch of facial n 口轮匝肌 面动脉 orbicularis onis depressor labii inferioris pressor anguli oris 下颌下淋巴结 mandibular lymph nodes Great auricula stemocleidomasto 外静脉 ermal jugular teral supra- 颈横神 anterior jugular praclavicular n. 胸乳突肌胸骨头 胸镜乳突肌锁 静脉弓
Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Dissect and observe ant.jugular v.(sometimes,there is a venous arch between both ant.jugular vv.) Dissect and observe ext.jugular v.,Look for some sup. cervical lymph nodes around the ext.jugular v. Find cutaneous nn.greater auricular n., ant.n.of the neck and marginal mandibular branch of facial n. Direction for the dissection of sup. layer of neck