👉 Dorsal (from dorsal, from Greek for "on the side") and caudal (from cailus, from Latin for "tail") are terms that describe the axial skeleton of animals. The term dorso-axial refers to the axial skeleton of vertebrates. In other words, it describes the axial structure that forms the backbone of an animal. Dorsal: This is the side of the body where the head and neck meet. It is typically the first part of