上海交通大学耳鼻咽喉科学英文版课件 anatomy of pharynx.ppt

Anatomy of Pharynx Circumscription of pharynx Pharynx is the junction between respiratory tract and alimentary tract. Circumscription of pharynx Superior: base of skull Inferior: inferior border of C6 Anterior: Connect to nose, mouth and larynx Posterior: Prevertebral fascia Subsection of pharynx nasopharynx： skull base free edge of soft palate oropharynx： free edge of soft palate superior border of epiglottis laryngopharynx： superior border of epiglottis inferior border of cricoid cartilage Nasopharynx(Epipharynx) adenoid pharyngeal opening of auditory tube torus tubalis pharyngeal recess tubal tonsils Oropharynx(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 mucous layer fibrous layer muscle layer： pharyngeal constrictor pharyngeal elevator muscle group palatine velum muscle group Mantle layer interfascial space retropharyngeal space parapharyngeal space Pharyngeal lymph tissue Pharyngeal lymphatic ring(waldeyer lymphatic ring) inner ring outer ring Waldeyer lymphatic ring Structure of pharyngeal lymphatic ring Pharyngeal submucous lymph tissue (inner ring) Lymph node of neck（outer ring） adenoid tonsil tubal tonsils tonsilla palatina lateral pharyngeal bands folliculus lymphaticus of pharyngeal posterior wall lingual tonsil retropharyngeal lymph nodes lymph nodes of mandibular angle submandibular lymph nodes submental lymph nodes drain to Tonsilla palatina anatomy feature location appearance construction features Tonsilla palatina blood vessel：descending palatine artery