MORPHOMETRIC STUDY OF THE COCHLEA OF THE RABBIT (ORYCTULAGUS CUNICULUS)

Authors
  1. Ramprashad, F.
  2. Landolt, J.P.
  3. Money, K.E.
  4. Laufer, J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A detailed morphometric study of the cochleae in four rabbits (Oryctulagus cuniculus) was made from graphic reconstructions of serial sections. Morphometric changes studied along the length of the cochlea were (i) the cross-sectional areas of the scalae vestibuli, tympani, and media, (ii) the width of the basilar membrane. (iii) the cross-sectional area and thickness of the basilar membrane, and (iv) the density of the bipolar ganglion cells innervating the organ of Corti. Changes in the cross-sectional areas of the scalae tympani and vestibuli were similar, both decrease from the cochlear base to 1.2 mm, increase to maximum values of 1.4 square mm at 3.0 mm, and decrease to 0.4 square mm at 4.3 mm. The cross-sectional area of the scala media remained unchanged. Three distinct morphometric changes were observed in the width and cross-sectional area of the basilar membrane. TRUNCATED
Report Number
80-P-61 — Research Paper
Date of publication
01 Jan 1984
Number of Pages
6
Reprinted from
Can J Zool., no 62, 1984, p 2476-2481
DSTKIM No
85-01528
CANDIS No
46340
Format(s):
Hardcopy;Originator's fiche received by DSIS

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