platymyarian

platymyarian

[¦plad·ē‚mī¦a·rē·ən]
(invertebrate zoology)
In nematodes, pertaining to flat muscle cells with the fibrillar region limited to a basal zone.
References in periodicals archive ?
The structure of the filament layer is diagrammed in Figure 1 for the two main types of muscle fiber architecture found in nematodes: platymyarian, represented here by Caenorhabditis elegans, and coelomyarian, represented by Mermis nigrescens.
In the platymyarian type of nematode muscle cell, the contractile structure consists of a layer, about 1 [[micro]meter] in thickness, of myofilaments parallel to the very thin epidermis (hypodermis) and cuticle [ILLUSTRATION FOR FIGURE 1 OMITTED].
In the folded contractile layer of coelomyarian muscle, the dense bodies connect the thin filaments perpendicularly to the basal lamina, as in platymyarian muscle, but most of the basal lamina is in the form of a longitudinal ribbon that extends radially inwards between the cells [ILLUSTRATION FOR FIGURE 1 OMITTED].