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1、,Anatomy of Pharynx,Circumscription of pharynx,Pharynx is the junction between respiratory tract and alimentary tract.,Circumscription of pharynx,Superior:base of skullInferior:inferior border of C6Anterior:Connect to nose,mouth and larynxPosterior:Prevertebral fascia,Subsection of pharynx,nasophary
2、nx：skull base free edge of soft palateoropharynx：free edge of soft palate superior border of epiglottis laryngopharynx：superior border of epiglottisinferior border of cricoid cartilage,Nasopharynx(Epipharynx),adenoid pharyngeal opening of auditory tube torus tubalis pharyngeal recess tubal tonsils,O
3、ropharynx(Mesopharynx),fauces glossopalatine arch pharyngopalatine arch tonsilla palatina lateral pharyngeal bands pharyngeal posterior wall,Laryngopharynx（Hypopharynx）,atrium of larynx vallecula epiglottica pyriform sinus postcricoid space,Structure of pharyngeal wall,layer of pharyngeal wall mucou
4、s layerfibrous layer muscle layer：pharyngeal constrictor pharyngeal elevator muscle group palatine velum muscle groupMantle layer,interfascial space retropharyngeal space parapharyngeal space,Pharyngeal lymph tissue,Pharyngeal lymphatic ring(waldeyer lymphatic ring)inner ring outer ring,Waldeyer lym
5、phatic ring,Structure of pharyngeal lymphatic ring,Pharyngeal submucous lymph tissue(inner ring),Lymph node of neck（outer ring）,adenoid tonsiltubal tonsilstonsilla palatinalateral pharyngeal bandsfolliculus lymphaticus of pharyngeal posterior walllingual tonsil,retropharyngeal lymph nodeslymph nodes
6、 of mandibular anglesubmandibular lymph nodessubmental lymph nodes,drain to,Tonsilla palatina,anatomy feature location appearance construction features,Tonsilla palatina,blood vessel：descending palatine artery ascending palatine artery tonsillar artery tonsillar branch of ascending pharyngeal artery
7、 dorsal artery of tongue nerves：pharyngeal plexus superior maxillary nerve(2)branches glossopharyngeal nerve.,Pharyngeal blood vessels and nerves,arteriesveinsnerves,Questions?,how many sections has the pharynx been divided into?What are those anatomy defining points?what is the composition of pharyngeal lymphatic ring(waldeyer lymphatic ring)?what is the blood apply of tonsilla palatina?,Thank you！,
