. Diseases of the ear : a text-book for practitioners and students of medicine. include the auricle and the cartilag-inous meatus, the bony external auditory meatus, the mem-brana tympani, the tympanum, and the Eustachian tube. The auricle and the cartilaginous meatus together form anirregularly funnel-shaped device for transmitting aerial vibra-tions to the deeper parts, the auricle constituting the wideportion of the funnel, the cartilaginous meatus the tubularportion. The Auricle.—The auricle consists of a thin plate of fibro-cartilage, oval in outline, attached to the side of the skull at
. Diseases of the ear : a text-book for practitioners and students of medicine. include the auricle and the cartilag-inous meatus, the bony external auditory meatus, the mem-brana tympani, the tympanum, and the Eustachian tube. The auricle and the cartilaginous meatus together form anirregularly funnel-shaped device for transmitting aerial vibra-tions to the deeper parts, the auricle constituting the wideportion of the funnel, the cartilaginous meatus the tubularportion. The Auricle.—The auricle consists of a thin plate of fibro-cartilage, oval in outline, attached to the side of the skull at an acute anglewith the median an-tero-posterior verti-cal plane of the posterior surfaceis convexand smooth,while the concaveanterior surface pre-sents certain irreg-ularities which meritspecial unattached bor-der of this oval car-tilaginous plate isfolded forward uponitself to such an ex-tent that the freemargin appears upon the anterior or external surface, form-ing the helix. Above, the helix does not terminate at the Cristahelicis Spina helicis. Fig. I.—The cartilaginous framework of the auricle(After Politzer.) THE AURICLE.
Size: 1569px × 1592px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookiddiseartex0, booksubjectear
