The anatomist's vade mecum : a system of human anatomy . se spiralis, by means of anopening common to both, whichhas been termed by Breschethelico-trema (fcXi^, tXiaah) vol-vere—rprifia). Inferioily, oneof the two scalee, the scala ves-tibuli, terminates by means of anoval aperture in the anterior ven-tricle of the vestibule; while theother, the scala tympani, becomessomewhat expanded, and opensinto the tympanum through thefenestra rotunda (fenestra coch-lese). Near the termination of thescala tympani is the small open-ing of the aquseductus cochleae. The internal surface of the os-seous labyr
The anatomist's vade mecum : a system of human anatomy . se spiralis, by means of anopening common to both, whichhas been termed by Breschethelico-trema (fcXi^, tXiaah) vol-vere—rprifia). Inferioily, oneof the two scalee, the scala ves-tibuli, terminates by means of anoval aperture in the anterior ven-tricle of the vestibule; while theother, the scala tympani, becomessomewhat expanded, and opensinto the tympanum through thefenestra rotunda (fenestra coch-lese). Near the termination of thescala tympani is the small open-ing of the aquseductus cochleae. The internal surface of the os-seous labyrinth is lined by ajibro-serous membrane, which is analo-gous to the dura mater in per-forming the office of a periosteumby its exterior, whilst it fulfils the purpose of a serous membraneby its internal layer, secreting a limpid fluid, the aqua labyrinthi(perilymph, liquor Cotunnii), and sending a reflection inwards uponthe nerves distributed to the membranous labyrinth. In the cochlea,the membrane of the labyrinth invests the two smfaces of the bony. * The labyrinth of the left ear, laid open, in order to show its cavities andthe membranous labyrinth. After Breschet. 1. The cavity of the vestibule,opened from its anterior aspect in order to show the three-cornered form ofits interior, and the membranous labyrinth which it contains. The figurerests upon the common saccule of the membranous labyrinth,—the sacculuscommunis. 2. The ampulla of the superior or perpendicular semicircularcanal, receiving a nervous fasciculus from the superior bianch of the vesti-bular nerve, 3. 4. The superior or perpendicular canal with its containedmembranous canal. 5. The ampulla of the inferior or horizontal semicircularcanal, receiving a nervous fasciculus from the superior branch of the vesti-bular nerve. 6. The termination of the membranous canal of the horizontalsemicircular canal in the sacculus communis. 7. The ampulla of the middleor oblique semicircular canal, receiving a nervous fasci
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
