articular membrane

articular membrane

[är′tik·yə·lər ′mem‚brān]
(invertebrate zoology)
A flexible region of the cuticle between sclerotized areas of the exoskeleton of an arthropod; functions as a joint.
References in periodicals archive ?
Therapeutic ultrasound increases cell permeability by setting up the cavitations, thus aiding in cell communication across articular membrane and linings.
Abdomen 3.04 long, 2.52 wide near rear of tergite 11, where widest, coloration and setation as in carapace except for narrow, dark orange articular membranes; ventral surface with white, calyx-shaped, scale-like setae covering posterior two-thirds of surface, densely packed except on deep, paramedian depressions on sternites 12 and 13; all surfaces with scattered, tiny tubercles; median plates of tergites wider than long, with submarginal depressions occupying middle half of length of tergite 11, anterior two-thirds of length of tergite 12, anterior half of length of tergite 13, depressions with fewer scale-like setae than remainder of surface.
Abdomen 2.95 long, 2.33 wide near middle of tergite 11, where widest, coloration and setation as in carapace except for narrow, dark orange articular membranes; dorsal and ventral surfaces without scale-like setae, densely coated with tiny tubercles; median plates of tergites wider than long, with slight submarginal depressions, tergite 11 greatly elevated anteromedially.