marginal cell

The marginal cell of the forewing is elongated and thin.

The marginal cell of the wing is larger than in the related Anthidium exhumatum.

The marginal cells, when observed in section, may be narrow, but are more typically enlarged and wider than those beneath.

The marginal cells are involved primarily in K transport and line the endolymphatic space of the scala media.

In a 64-cell embryo, about 30 complete blastomeres appear on the surface, surrounded by marginal cells that are continuous with the yolk cell.

Computational model of vectorial potassium transport by cochlear marginal cells and vestibular dark cells.

The apex of the marginal cell of the wing is truncate, and the trochanteral scopa is reduced.

The shape and bend of the marginal cell is typical for the tribe Exomalopsini, while the shape of the cells in the forewing and the simple structure of the mandibles are found only in the Anthophorula subgenus Anthophorula members.

Dark cells are morphologically and functionally similar to marginal cells of the stria vascularis as they both display characteristics of fluid transport tissue; however, studies indicate an earlier histological and immunohistological maturity in the dark-cell areas compared to the stria vascularis.

The conformation of the cells is strictly dependent on the morphology of the venation: the marginal cell is very narrow and opens as does the submarginal on the costal margin; the first rear cell is relatively long and opens close to the apex of the wing.

They may therefore be difficult at first glance to distinguish from Nomadinae, but the details of their wing venation are characteristic: the marginal cell is shorter than the first two submarginal cells, and the second abscissa of vein M+Cu is extremely short, with the cells it connects being almost adjacent to each other.