Arthropods are invertebrates with segmented bodies and jointed limbs. Arthropods are invertebrate animals with a chitinous exoskeleton, segmented bodies, and jointed legs. The thoracic limbs are jointed and used for swimming or walking. All Ideal bears have jointed hips, necks, and shoulders. Constructed of Ballysadare limestone with finely jointed ashlar walling. Because of the extremely deformed bone structure, people with achondroplasia are often "double jointed". His thumbs were "double jointed" and his fingers were long and thin. From the base, three middle jointed arms extend. Being jointed, the arms can curl up. They are prominently layered and locally columnar jointed. Plastic pipes are best used as they are more easily jointed correctly. This cable had to be wrapped around jointed tubing and connected at each joint. The stem is jointed at each leaf. All stems are terminating in spike-like apparently jointed inflorescences. The individual flowers have jointed stalks (pedicels).