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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    >3 and the posterior wall* is a marked depression, known as Rosenmuller's fossa. The mucous membrane lining the naso-pharynx is covered in great part with columnar ciliated epithelium. Numerous racemose mucous glands open on its surface. The mucosa is infiltrated with diffuse adenoid tis- sue, and many lymph follicles. This is more espe- cially the case in the roof and upper parts of the posterior wall. The lymphoid tissue in the roof forms a more or less promi- nent irregular mass, with crypts leading from the surface into the mass, and con- stitutes the so-called pharyngeal tonsil, or Luschka's ton- sil (Fig. 6). The pharyngeal tonsil (Fig. 6) varies in size, and is continued from the roof, for a variable distance, on to the posterior wall, and extends more or less into Rosenmuller's fossa on each side. It is divided into numerous folds and elevations by grooves and depres- sions of various size. Almost always a distinct orifice exists in the middle line near the lower part of Luschka's tonsil, which leads into a recess of the mucous membrane situated beneath the tonsil. This recess is known as the pharyngealbursa, and is of some importance in relation to naso-pharyngeal troubles. It extends upwards behind the Fig. 6.—.Naso-pharynx and Pharyngeal Tonsil. (After Luschka.) 1, Pterygoid process ; 2, vomer ; 3, posterior ex- tremity of the roof of the nasal fossa; 4, orifice of Eustachian tube ; 5, orifice of the pharyngeal bursa ; 6, Rosenmuller's fossa ; 7, adenoid tissue, showing depressious on surface.