👉 Arthropathic is a medical term that refers to an organism with three pairs of legs, which are called "feet," and four arms. These animals have no backbone or brain, but instead use their sense of smell for navigation and communication. Arthropods include insects (such as ants, spiders, beetles, and butterflies), crustaceans (such as crabs, lobsters, and snails), and other invertebrates like worms, slugs, and scorpions