All movements are possible in each region of the vertebral column, with the range of motion determined by disc thickness and articular process geometry. The movements of flexion, extension and lateral flexion involve compression of the intervertebral discs at one edge and stretching at the other.
It is important to note that rawhide bones and chews made in USA are the absolute best for your dog. Choosing American Rawhide, Merrick, Dingo, Bone Buddies or Beafeaters brands you give your pet a rawhide chew of premium beefhide from corn-fed American cattle produced under the strictest quality standards. American production processes and sanitation practices are much better and more highly regulated than most other countries producing rawhide bones.
Use salmon treats for training or as a healthy reward. Again, watch your ingredients and read the label. Some treats are salmon cubes or bits that are dehydrated or freeze-dried. Others are flavored bits with only a small amount of salmon flavoring. Top your dog's food with flakes of canned salmon. Canned salmon is a fine way to share fish with your dog. Open a can, flake some on your salad and some on your dog's kibble. Canned salmon often includes the fish skin and bones. The calcium-rich bones are cooked and soft enough to be blended into the food.