頸淺層頸前區(qū)的解剖一、RegionsofneckAnteriorregionofneckSternocleidomastoidregionLateralregionofneckSternocleidomastoid(胸鎖乳突肌)Omohyoid(肩胛舌骨肌)Digastric(二腹肌)

SubmandibulartriangleSubmentaltriangleCarotidtrianglemusculartriangleSubmentaltriangleGreatersupraclavicularfossalessersupraclavicularfossa二、Superficialstructure(淺層結(jié)構(gòu))1、Skin(皮膚)2、Superficialfascia(淺筋膜)(1)platysma(頸闊肌)AnteriorjugularV頸前靜脈ExternaljugularV頸外靜脈(2)superficialV(3)cutaneousNLesseroccipitalN(枕小神經(jīng))GreaterauricularN(耳大神經(jīng))TransverseNofneck(頸橫神經(jīng))SupraclavicularN(鎖骨上神經(jīng))(皮神經(jīng))主要為頸叢皮支①superficiallayer淺層(investingfascia封套筋膜)包裹兩肌:胸鎖乳突肌,斜方肌兩腺:下頜下腺、腮腺三、Deepfascia(深筋膜)②precheallayer氣管前層(pretrachealfascia氣管前筋膜)③prevertebrallayer椎前層(prevertebralfascia椎前筋膜)④carotidsheath頸動脈鞘Deepfascia(深筋膜)Investingfascia封套筋膜Pretrachealfascia(氣管前筋膜)Prevetebralfascia椎前筋膜Carotidsheath頸動脈鞘大家有疑問的，可以詢問和交流可以互相討論下，但要小聲點四、muscle(肌肉)(一)sternocleidomastoid(胸鎖乳突肌):副神經(jīng)(二)suprahyoidmuscles(舌骨上肌群)Digastic二腹肌Stylohyoid莖突舌骨肌

Mylohyoid下頜舌骨肌

(2)舌骨上肌群Geniohyoid頦舌骨肌

Digastic二腹肌Stylohyoid莖突舌骨肌

Mylohyoid

下頜舌骨肌

☆Liesbelowthechinandisboundedlaterallybyanteriorbelliesofdigastric,andinferiorlybythebodyofhyoidbone☆Coveredbyskin,superficialfasciaandinvestingfascia☆Floor－mylohyoidmuscles☆Contents－submentallymphnodes頸前區(qū)

1、

Submentaltriangle頦下三角2、Submandibulartriangle下頜下三角☆

Boundedbyanteriorandposteriorbelliesofdigastricandlowerborderofthebodyofthemandible☆Contents－submandibulargland,faciala、,v、,hypoglossaln、、,lingualnandv、,submandibularganglionandsubmandibularlymphnodeslingualn舌神經(jīng)submandibularganglion下頜下神經(jīng)節(jié)hypoglossaln舌下神經(jīng)submandibulargland下頜下腺,facialv面靜脈,faciala、面動脈3、Carotidtriangleandsternocleidomastoidregion頸動脈三角和胸鎖乳突肌區(qū)(1)ansacervicalis頸袢(2)carotidsheath頸動脈鞘(3)hypoglossaln舌下神經(jīng)(5)cervicalpartofsympathetictrunk頸交感干(4)accessoryn副神經(jīng)☆ansacervicalis頸袢☆carotidsheath①

moncarotidA

(頸總動脈)Onthelevelofthesuperiorborderofthethyroidcartilage,itdividesintotheinternalandtheexternalcarotidarteriesThecarotidsinus(頸動脈竇):在位于頸總動脈末端和頸內(nèi)動脈起始處,為壓力感受器。Thecarotidbody(頸動脈小球):位于頸總動脈分叉處得后方,為化學(xué)感受器。②Externalartery(頸外動脈)Ontheleveloftheneckofthemandible,Itdividesintotwoterminalbranches:themaxillaryA(上頜動脈)andsuperficialtemporalA(顳淺動脈)。在頸部得分支有:

ThesuperiorthyroidA(甲狀腺上動脈)

ThelingualA(舌動脈)

ThefacialA(面動脈)

TheoccipitalA(枕動脈)

TheposteriorauricularA(耳后動脈)

TheascendingpharyngealA(咽升動脈)。④InternaljugularV(頸內(nèi)靜脈)在頸部得主要屬支有:Thefacial