. The elements of Embryology. Embryology. 398 DEVELOPMENT OF ORGANS IN MAMMALIA. [CHAP. Fig. â ~^S '--R Diagrams of the Membranous Labyrinth. (From Gegen- baur.) I. Fish. II. Bird. III. Mammal. U. utriculus; S. sacculus; US. utriculus and sacculus; Cr. canalis reuniens; R. recessus labyrinth!; UC. commence- ment of cochlea; C. cochlear canal; L. lagena ; K. cupola at apes of cochlear canal; V. csecal sac of the vestibulum of the cochlear canal. membrane and external auditory meatus resembles that in Birds (p. 166). As in Birds two membranous fenestrse, the fenestra ovalis and rotunda, in
. The elements of Embryology. Embryology. 398 DEVELOPMENT OF ORGANS IN MAMMALIA. [CHAP. Fig. â ~^S '--R Diagrams of the Membranous Labyrinth. (From Gegen- baur.) I. Fish. II. Bird. III. Mammal. U. utriculus; S. sacculus; US. utriculus and sacculus; Cr. canalis reuniens; R. recessus labyrinth!; UC. commence- ment of cochlea; C. cochlear canal; L. lagena ; K. cupola at apes of cochlear canal; V. csecal sac of the vestibulum of the cochlear canal. membrane and external auditory meatus resembles that in Birds (p. 166). As in Birds two membranous fenestrse, the fenestra ovalis and rotunda, in the bony inner wall of the tympanic cavity are formed. The fenestra ovalis opens into the vestibule, and is in immediate contiguity with the walls of the utricle, while the fenestra rotunda adjoins the scala tympani. In place of the columella of Birds, three ossicles, the malleus, incus and stapes I'each across the tympanic cavity from the tympanic membrane. 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 Foster, M. (Michael), Sir, 1836-1907. London, MacMillan
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Keywords: ., bookautho, bookcentury1800, bookdecade1880, booksubjectembryology
