THE MARGINAL FIBER MASS IN THE UTRICLE OF THE PIGEON

Authors
  1. Young, E.R.
  2. Correia, M.J.
  3. Landolt, J.P.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Texas Univ Medical Branch, Galveston TX (US) Dept of Otolaryngology
Abstract
The marginal fiber mass (MFM) that Werner described in the utricle of Aves was observed and analyzed in the pigeon using light, scanning electron, and transmission electron microscopic techniques. Morpholog- ically, the MFM is a gelatinous, fibrous mass which has the shape of an oblique cone. The basal end terminates as a foot-like structure on the macula utriculi while the apical end attaches the statoconial membrane securely to the wall of the utricle. Specific tests for elastin, collagen and a "connective tissue type" of reticulum indicated that none of these components were present in the MFM. The MFM did, however, stain positively with PAS, Alcian blue and a PAS-Alcian blue combination. The extent and location of the staining suggest that the main bulk of the MFM is comprised primarily of neutral mucopolysaccharides with traces of acid mucopolysaccharides on its surfaces.
Report Number
RP-1028 — Preliminary Report, Paper presented at the 25th International Congress of Physiological Sciences, Munich, West Germany, 1971
Date of publication
01 Jan 1974
Number of Pages
10
Reprinted from
Brain Research, vol 81, 1974, p 533-542
DSTKIM No
75-02730
CANDIS No
25945
Format(s):
Hardcopy

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