single seta Single setae may be simple or bear short lateral processes that are not to be considered as branches. Single setae may have longitudinal ridges but unlike scales they are broadest at the base and taper distally. The descriptors used to name single setae include aciculate, barbed, brush-tipped, foliform, lanceolate, pectunculate, peglike, simple, spiniform and spinulate. The single setal names are used to describe the branches of branched setae. TGMA:0000579 TGMA:0000579 default_namespace seta