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 . Fig. 35.—Specimen From a Child Eight Ye.\hs, Eic;ht Months, and OneDay Old. (Series D, No. 63.)Lateral view of frontal, ethmoidal, and maxillary sinus areas, the lateralportion of each having been removed by sagittal cuts. Note that the sinusfrontalis developed directly from the infundibulum ethmoidale. Note alsothe incomplete se
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 . Fig. 35.—Specimen From a Child Eight Ye.\hs, Eic;ht Months, and OneDay Old. (Series D, No. 63.)Lateral view of frontal, ethmoidal, and maxillary sinus areas, the lateralportion of each having been removed by sagittal cuts. Note that the sinusfrontalis developed directly from the infundibulum ethmoidale. Note alsothe incomplete septa in the sinus maxillaris. , Cellute ethmoidalesanterior; , cellula ethmoidales posterior; , nervus opticus;, septiilse maxillares; , ostium maxillare; ,Fossa sacci lacrimalis; , cellute infundibulares; , ostiumfrontale; , sinus frontalis. THE SINUS MAXILLARIS 97 ro (a)O s t .1 r o tb) Fig. 36.—Specimen From a Child Nine Years, One Month, and NineDays Old. (Series D, No. 64.)Incision through maxilla is Yz mm. to the right of median line; in the frontalregion 1 mm. to the left, and through the botly of the sphenoid is 5 mm. tothe left of median line. The anterior portion of the concha media and a smallportion of the frontal bone have been removed to show the structures enteringinto the formation of the lateral nasal wall, and also the location of the ostiafrontalia. In this case there are three sinus frontales—one in the right sideand the two in the left side here illustrated. Of the more lateral sinus frontalis,only the ostium is shown iOsl. front. (6)); the sinus, however, extends to thesame height as the medial one shown in the illustration. Note that neitherostium comes into direct relation to the infundibulum ethmoidale. In thesuprabuUar furrow ostia of buUar cells are shown. , Sinus frontalis;, conchae frontales;
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Keywords: ., boo, bookcentury1900, booksubjectembryologyhuman, booksubjectnose
