The device is a specialized form of external fixator, a circular fixator, modular in construction. Stainless steel (or titanium) rings are fixed to the bone via stainless heavy-gauge wire (called pins or Kirschner wires). The rings are connected to each other with threaded rods attached through adjustable nuts.he Ilizarov external fixators can be used to correct angular deformity in the leg, to correct leg-length differences, and treat non-unions. In most developing countries it is a highly specialized technique used mainly for deformity correction by experienced surgeons due to its complexity.
There are different zones not levels. The Killer Whale/ Orca Whale lives in the Epipelagic Zone. Also, known as the Sunlight Zone.
Below the sunlit zone is the twilight zone where some light penetrates the ocean to a depth of 3000 feet. Viper fish, firefly squid, and the chambered nautilus live in this zone. The midnight zone extends from a depth of 3000 feet to the seafloor.Animals found in this zone include the giant squid, deep sea hatchetfish and bioluminescent jellyfish.Benthic zone. The benthic zone includes the entire seafloor. About 200,000 species of plants and animals live here.elow the sunlit zone is the twilight zone where some light penetrates the ocean to a depth of 3000 feet. Viper fish, firefly squid, and the chambered nautilus live in this zone. The midnight zone extends from a depth of 3000 feet to the seafloor.