Handbook of diseases of the nose and nasopharynx.

  • Ball, James B.
Date:
1890
Catalogue details

Licence: Public Domain Mark

Credit: Handbook of diseases of the nose and nasopharynx. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    plicated surface, and several bones enter into its formation. In front are the nasal process of the superior maxilla, and the lachrymal bone, in the middle the ethmoid, the inner sur- face of the superior maxilla, and the inferior turbinate bones, and behind is the vertical plate of the palate bone. It may- be regarded as an irregularly flattened surface, with three Fig. 4.—Outer Wall of the Left Nasal Fossa. I., Inferior meatus ; II., Middle meatus ; III., Superior meatus, a, The inferior turbinate body ; b, the middle turbinate body; c, the superior turbinate body; J, a fourth turbinate body ; e, the agger nasi, just below which is the atrium; /, the vestibule ; g, Eustachian orifice ; h, anterior lip of the Eustachian orifice ; i, posterior lip of the same ; k, Rosenmilller's fossa ; m, the soft palate ; a, the levator cushion. marked prominences upon it, each having an antero-posterior direction, and situated about equal distances apart. These prominences are the turbinate bones, so called on account of their rolled-up form. They are also termed spongy bones on account of their porous texture. Each consists of a thin plate of bone, which projects into the cavity of the