Fig. 13From: On springtails (Hexapoda: Collembola): a morphofunctional study of the jumping apparatusSchematic representation showing how basal plates BP1, BP2 and BP3 and the muscles function in the construction of the spring mechanism. A, B Furca flexed. C, D Furca extended. M: manubrium; D: dens; BR: basal rods; BC: basal condyle; BS2: basal sclerite 2; BS3: basal sclerite 3; BP1: basal plate 1; BP2: basal plate 2; BP3: basal plate 3Back to article page