Development and anatomy of the nasal accessory sinuses in man; observations based on two hundred and ninety lateral nasal walls, showing the various stages and types of development of the accessory sinus areas from the sixtieth day of fetal life to advanced maturity . 4 MM. TO Right of Median Line Posteriorly Throughthe Body of the Sphenoid. ( one hundred and thirty-five days B, No. 1. X H-3.) Shows the lateral nasal wall and the developing sinus sphenoidalis which ex-tends into the remnant of the posterior portion of the cartilaginous nasalcapsule. The concha sphenoidalis (o.
Development and anatomy of the nasal accessory sinuses in man; observations based on two hundred and ninety lateral nasal walls, showing the various stages and types of development of the accessory sinus areas from the sixtieth day of fetal life to advanced maturity . 4 MM. TO Right of Median Line Posteriorly Throughthe Body of the Sphenoid. ( one hundred and thirty-five days B, No. 1. X H-3.) Shows the lateral nasal wall and the developing sinus sphenoidalis which ex-tends into the remnant of the posterior portion of the cartilaginous nasalcapsule. The concha sphenoidalis ( Bertini) develops in thatportion of the cartilage which forms the antero-inferior boundary of the primi-tive .sinus sphenoidaUs. , Capsula nasalis posterior; Hypoph.,hypophysis; , ostium tubEe auditiva;; , vestibulum nasi;, concha inferior; Lob., lobulus; , agger nasi; , conchamedia; , concha superior; , concha suprema I; , sinussphenoidalis. THE CELLULE ETHMOIDALES 51 surfi^^ce), c suprn ^-A=^s C5^p,r\ Ost. t Ton. Fig. 16.—Sagittal Section, Median Anteriorly, Posteriorly 1}4 mm. TO the Right of Median Line. (Fetus one hundred and eighty-eight days old. Series B, No. 4.) The greater portion of the concha media has been removed in order to showthe relations of the recessus conchalis, processus uncinatus, hiatus semilunaris,and bulla ethmoidalis. This specimen shows the presence of five conchaeethmoidales, the only specimen in the entire series having so great a the extent of development of the sinus sphenoidalis. Cmal., Conchamedia (cut surface); , concha superior; , concha suprema I;, concha suprema II; , concha suprema III; ,sinus sphenoidalis; , capsula nasalis posterior; ,ostium tubfe auditivEe; , tonsilla palatina; , concha inferior;, p
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Keywords: ., boo, bookcentury1900, booksubjectembryologyhuman, booksubjectnose
