pillar cell


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pillar cell

One of two groups of cells (inner and outer) resting on the basement membrane of the organ of Corti in which elongated bodies (pillars) develop. These enclose the inner tunnel (Corti's tunnel).
See also: pillar
References in periodicals archive ?
Like the pillar cell perikaryon [ILLUSTRATION FOR FIGURE 4 OMITTED], the entire lower surface of the pillar cell flange is underlain by a fibrous basal lamina [ILLUSTRATION FOR FIGURES 7 AND 9 OMITTED], thickness 92.
The regions of contact between adjacent pillar cell flanges constitute highly structured junctional complexes [ILLUSTRATION FOR FIGURES 7 AND 11 OMITTED].
Qualitatively similar, these modifications comprise substantial reductions in the thickness of the pillar cell flanges [ILLUSTRATION FOR FIGURES 3 AND 10 OMITTED] and in the height and density of the apical microvilli, both in the region above the pillar cell perikarya [ILLUSTRATION FOR FIGURES 5 AND 6 OMITTED] and in the attenuated flange regions [ILLUSTRATION FOR FIGURE 10 OMITTED].
With the reduction in thickness of the pillar cell flanges, and to a lesser extent of the intralamellar septal cells, there is a corresponding, marked increase in the volume of the hemolymph lacunae ([ILLUSTRATION FOR FIGURE 3 OMITTED], cf [ILLUSTRATION FOR FIGURE 2 OMITTED]).
The lower surface of the pillar cell flange is not invaginated or associated with mitochondria, and it does not appear to be involved in active transport and salt movement.
1981) and [Mathematical Expression Omitted] (Pequeux, 1995) counter transporters most likely present in the membranes of the long, dense microvilli located immediately above the pillar cell perikaryon, the region closest to the basolateral junctions with the septal cells.