Detailed display of the nasal cavity, mouth, pharynx, throat parts of the lesion Show, nose , polyps, tonsil , and so on nasal cavity throat various parts of the lesion Material: imports of environmentally friendly PVC materials, imports of environmentally friendly paint, computer color, high-level hand-painted. Hypopharynx between edge and edge of cervical vertebra plane 6 on the epiglottis, forward by the throat and laryngeal cavity are interlinked, down the esophagus. Material: imported PVC material, imported paint, computer color matching, advanced hand-painting. In nasopharyngeal two side wall, have eustachian tube swallow mouth and middle ear tympanic cavity are interlinked.In nasopharyngeal two side wall, have eustachian tube swallow mouth and middle ear tympanic cavity are interlinked. Material: imported PVC material, imported paint, computer color matching, advanced hand-painting. Hypopharynx between edge and edge of cervical vertebra plane 6 on the epiglottis, forward by the throat and laryngeal cavity are interlinked, down the esophagus. Material: imports of environmentally friendly PVC materials, imports of environmentally friendly paint, computer color, high-level hand-painted. Detailed display of the nasal cavity, mouth, pharynx, throat parts of the lesion Show, nose , polyps, tonsil , and so on nasal cavity throat various parts of the lesion.