. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. j^er s. The membranous labyrintli of Rana csculenta, \\dthin its natural covering of periosteum ; after Retzius. I. Seen from the side ; magnified tea times. II. Tlie hinder haJf ; magnified ten times. Seen obliquely from above, and in front, and from the side. ndf al. tip. apb. cp ctfo dp dp' I. ms. Anterior ampulla. Apertura fenestrae ovalis. Apertura lagenae. Posterior ampulla. Opening into the pars basilaris. Anterior semicircular canal. External semicircular canal. Posterior semicircular canal. Ductus fenestrae ovalis. Du
. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. j^er s. The membranous labyrintli of Rana csculenta, \\dthin its natural covering of periosteum ; after Retzius. I. Seen from the side ; magnified tea times. II. Tlie hinder haJf ; magnified ten times. Seen obliquely from above, and in front, and from the side. ndf al. tip. apb. cp ctfo dp dp' I. ms. Anterior ampulla. Apertura fenestrae ovalis. Apertura lagenae. Posterior ampulla. Opening into the pars basilaris. Anterior semicircular canal. External semicircular canal. Posterior semicircular canal. Ductus fenestrae ovalis. Ductus perilymphaticus. Saccus perilymphatious. Lagena cochlea. Macula sacculia. pb pa- per' rii. .spl Pars basilaris cochleae. Wider part of i)erilymphatic space. Narrower part of perilymphatic space. Ramus anterior. Ramulus neglectus. Ramus posterior. Ramulus sacculi. Saccule. Saccus fenestrae ovaUs. Saccus perilymphaticus. Tegmentum v;isculosum. Utricle. this membrane numerous irregular bundles of fibres, in the form of trabeculae, pass into the space and form a rich network, wliich is attached internally to the outer surface of the membranous labyrinth and holds it in position. Free nucleated leucocytes are occasionally with in the meshes of this network. The perilymphatic sj)ace is prolonged into two subsidiary cavities :— (i) The ductus fenestra ovalis (Retzius), (Fig. 245 '(fo) com- mences as an opening {(n^f) immediately opposite the forariten ovale of the hard capsule, which leads into a moderately large canal, the structure under consideration. It passes forwards and outwards through t\\e fenesira ovalu between the interstapedial and the outer wall of the capsule into the oval depression [fossa fenestrae ovalis),. 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 Ecker, Alexander, 1816-1887; Has
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisheroxfordclarendonpre
