part of ventral disc crossbridge 2014-04-03T11:23:33Z GO:0097595 crossbridge ventral disk crossbridge Structure horizontally linking adjacent microribbons of the ventral disc in Giardia species (trophozoite stage). The composition of crossbridges is not fully known yet. Due to the asymmetric nature of the Giardia trophozoite, this term is defined spatially as the trophozoite is viewed from the dorsal side, with the two nuclei dorsal to the ventral disc, and the ventral disc toward the anterior. cellular_component pr ventral disc cellular anatomical structure