This CERVICAL COLUMN manufactured by Nacional Ossos for planning and training of veterinary orthopedic surgery, with mechanical properties similar to the bone of a small dog, articulated, with simulation of anterior and posterior ligaments and semi-flexible discs. Ideal for installing screws, plates, cages, intervertebral spacers and rods (fixators). It allows the orthopedist to have training, very close to the real thing, training himself with respect TO Bioethics.