The anatomy of the nasal cavity and its accessory sinuses : an atlas for practioners and students / by A. Onodi ; translated from the second edition by St. Clair Thomson.

  • Ónodi, A., 1880-
Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: The anatomy of the nasal cavity and its accessory sinuses : an atlas for practioners and students / by A. Onodi ; translated from the second edition by St. Clair Thomson. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

    18/92 page 14
    The nasal duct runs on the outer wall of the nasal cavity between the middle meatus and the maxillary sinus, and courses obliquely downwards to open underneath the inferior turbinal. The shape and relations of the middle meatus can only be studied after removal of the middle turbinal. When this is done there is brought into view an oblong semilunar cleft, the hiatus semilunaris, which is intimately connected with the accessory sinuses. This semilunar fissure is formed by the bulla ethmoidealis, the uncinate process, and the neighbouring portions of bone. It varies in its diameter, being widest at the bottom of the cleft. In its anterior portion is the opening of the frontal sinus; near the latter is the opening of the anterior ethmoidal cells; and close to the posterior extremity of the hiatus is generally found the orifice of the maxillary antrum. This latter sinus sometimes has an accessory opening—also into the middle meatus. Into the superior meatus open the posterior ethmoidal cells. Plate II. gives a surface view of the outer wall of the nasal cavity. It shows the turbinal bodies (*. m. f., s. t.) with their three meatuses (». w., m. m., s. hi.), and the rela- tion of the inferior meatus (i. m.) to the Eustachian tube («. t). The meatuses are best viewed in coronal sections. Plate XI. (from an infant) and XII. (from a child), and Plates VIII. and IX. (from adults) illustrate the relations of the turbinals (i. t, m. t, s. I.) to the respective meatuses (t. m., m m., s. m.) Plates VIII. and IX. show, in coronal section, the relations of the hiatus semilunaris with the maxillary sinus (antrum of Highmorc) (p. m. s.). Plate XIII. represents in horizontal section (viewed from above) the outer wall of the nasal cavity, the transverse section of the nasal duct (n. £?.),
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