A text-book on diseases of the ear, nose and throat . surfacecalled the atrium meatus medii. The only point of interest here is theagger nasi, a low elevation continuous with the middle turbinate. ANATOMY AXD PHYSIOLOGY OF THE XOSE AND NASOPHARYNX. 229 The middle turbinated body is much larger than the upper,—fromoue and one-quarter to one and one-half inches long and five-eighths of aninch high. Its attachment is i^eculiar in that anteriorly it has the shapeof an inverted U, creating a deep recess (recessus frontalis, Killian).This recess is not visible until the middle turbinal is removed. I
A text-book on diseases of the ear, nose and throat . surfacecalled the atrium meatus medii. The only point of interest here is theagger nasi, a low elevation continuous with the middle turbinate. ANATOMY AXD PHYSIOLOGY OF THE XOSE AND NASOPHARYNX. 229 The middle turbinated body is much larger than the upper,—fromoue and one-quarter to one and one-half inches long and five-eighths of aninch high. Its attachment is i^eculiar in that anteriorly it has the shapeof an inverted U, creating a deep recess (recessus frontalis, Killian).This recess is not visible until the middle turbinal is removed. Its topreaches up nearly to the floor of the frontal sinus, underneath the middleturbinal. The inferior turbinal is less deep than the middle, but longer,—from one and one-half to two inches. It curves downward usually towithin one-eighth of an inch of the nasal floor. The turbinated bodiesare often rudimentary in their develoi)ment, a condition causing abnor-mally large passages, with a tendency to drying and decomposition ofsecretions. Fig. Transverse section through the posterior portion of the nasal cavity. (Zuckerkaudl.) U, lowerturbinal; M. middle turbinal; 0, superior turbinal; S, septum; P, hard palate; IT, antrurc of High-more ; E. ethmoidal cells ; ,1, orbit; fo, olfactory region ; rr, respiratory region. There are three nasal meatuses. The upx^er is short, lies under thesuperior turbinal. and extends forward only as far as the middle of thecribriform i)late of the ethmoid bone. It contains the openings of theposterior ethmoidal cells. The middle meatus consists of a portion underneath the middle tur-binated body and a part hot covered by this. This latter portion iswider in front than behind, begins at the atrium meatus nasi medii, orvestibule of the middle meatus, in front, and extends back to the anteriorfold of the Eustachian opening. The portion of the middle meatuscovered by the middle turbinated body is a region of great importance tothe rhinologist. It
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