A manual of anatomy . , and the cricoid cartilage, in front. It is 5 to sHinches ( to 14 cm.) in length and widest in the upper part behindthe orifices of the auditory tubes. The nasopharynx is about 3 , the oropharynx 5 cm. and the laryngopharynx about 7 From the incisor teeth to the esophagus is about ^^i to 6Hinches. Dorsoventrally the nasopharynx is 15 to 18 mm., from theseptum of the nose to the dorsal wall; from the glossopalatal archesto the dorsal wall about 10 mm.; below this the wall approach eachother. The transverse dimension at the lateral recesses is 35 mm.;op
A manual of anatomy . , and the cricoid cartilage, in front. It is 5 to sHinches ( to 14 cm.) in length and widest in the upper part behindthe orifices of the auditory tubes. The nasopharynx is about 3 , the oropharynx 5 cm. and the laryngopharynx about 7 From the incisor teeth to the esophagus is about ^^i to 6Hinches. Dorsoventrally the nasopharynx is 15 to 18 mm., from theseptum of the nose to the dorsal wall; from the glossopalatal archesto the dorsal wall about 10 mm.; below this the wall approach eachother. The transverse dimension at the lateral recesses is 35 mm.;opposite the middle of the soft palate 25 mm.; opposite the inferior THE PHARYNX 291 margin of the laryngeal opening 45 mm.; below this it narrows tothe esophagus. The pharynx is attached from above downward to the pharyngealspine, basioccipital, petrous portion of the temporal bone, auditorytube, internal pterygoid plate, pterygomaxillary ligament, mylohyoidridge, mucous membrane of the mouth, base of the tongue, hyoid. Fig. 21 r.—Median sagittal section through the head and neck, a, Superior meatus of thenose; b, middle meatus of the nose; c, inferior meatus of the nose; d, torus tubarius (eusta-chian cushion); e, orifice of auditory tube;/, palatoglossal fold; g, tonsil; h, palatopharyn-geal fold; k, aryepiglottic fold; c, ventricle of the larynx; m, vocal cord; n, vestibule of nose. bone and thyreoid and cricoid cartilages of the larynx and below itbecomes continuous with the esophagus. The pharynx is divided into the nasopharynx, oropharynx andlaryngopharynx. The nasopharynx {pars nasalis) extends from the base of the skullto the dorsal border of the soft palate. It Hes behind the nasalcavities and is an accessory portion of the respiratory system. Itsventral wall is wanting and here are seen the two choanas. Upon 292 THE ALIMENTARY TRACT each lateral wall are several points of interest. Here is seen thepharyngeal orifice of the auditory tube {tuba auditiva) bounded by aho
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthumananatomy, bookyea
