. Cunningham's Text-book of anatomy. Anatomy. THE CEANIUM. 1367 chin may fracture the tympanic plate as well as the base of the skull, that pain on mastication is usually complained of in acute inflammatory affections of the meatus and middle ear, and that in young children, in whom the tympanic plate is incom- pletely ossified, suppurative inflammation is liable to extend from the ear to the parotid region. Clinically, to obtain a view of the membrana tympani a speculum and a reflecting mirror are employed; the auricle is pulled upwards, backwards, and laterally in order to Middle fossa of sk
. Cunningham's Text-book of anatomy. Anatomy. THE CEANIUM. 1367 chin may fracture the tympanic plate as well as the base of the skull, that pain on mastication is usually complained of in acute inflammatory affections of the meatus and middle ear, and that in young children, in whom the tympanic plate is incom- pletely ossified, suppurative inflammation is liable to extend from the ear to the parotid region. Clinically, to obtain a view of the membrana tympani a speculum and a reflecting mirror are employed; the auricle is pulled upwards, backwards, and laterally in order to Middle fossa of skull Tensor tympani muscle Processus cochleariformis Eminence of lateral semicircular canal Tympanic antrum. Auditory tube Retro-pharyngeal lymph gland "* J Internal carotid artery Internal jugular vein Tranverse sinus \ Posterior fossa of skull Rudimentary mastoid process Facial nerve Pyramid Section of jugular fossa Fig. 1072. Promontory View of the Labyrinthine Wall of the Middle Ear. Section through the left temporal bone of a child, to show the relations of the tympanum and tympanic antrum to the middle and posterior fossae of the skull. straighten the cartilaginous part of the canal. The healthy membrane is pearly gray, semi- opaque, slightly concave outwards, and obliquely placed, being inclined laterally, especially above and behind. The handle and short process of the malleus, both embedded in the membrana tympani, are the only objects distinctly seen when the healthy ear is examined with the speculum. Groove for posterior branch of middle meningeal artery Aditus ad antrum Mastoid antrum -W'-^. Transverse sinus- -V-' Incus. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cunningham, D. J. (Daniel John), 1850-1909; Robinson, Arthur, b. 1862, ed. New York, W. Wood
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
