Diseases of the nose and throat, comprising affections of the trachea and oesophagus / by Sir St. Clair Thomson.

  • Thomson, St. Clair, 1859-1943.
Date:
1912
Catalogue details

Licence: In copyright

Credit: Diseases of the nose and throat, comprising affections of the trachea and oesophagus / by Sir St. Clair Thomson. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

    28/866 (page 4)
    The larynx.—The floor of the primitive pharynx shows five visceral arches running to a central longitudinal ridge. The 4th and 5th arches run forward and inward to the hinder end of this ridge, so that the 5th has the 4th antero-externally to it. (Fig. 5.) The pulmonary opening is between the two 5th arches, and is F'g- 4.—Congenital deformity of the nose. Photograph of an infant 8 months old. There is no nasal obstruction. The two sidc^ of the cartilag.nous septum were evidently separated from each other, the anterior ends beintf v sible prom ner.t r.dges on the inner side of each vestibule. I here was also a weltmarked ot^^ in the middle line of the alveolar process.* converted into a sagittal sUt by their rapid growth. The true cords are formed m the margins of this slit, and the arytenoid and cricoid cartilages in the masses of the 5th arches. • G. Wilkinson, Proc. Roy. Soc. Med., L.aryngol. Section, Feb. ^, jgio.