Flexion is the most extensive of all the movements of the vertebral column, and is freest in the lumbar region. In extension, or movement backward, an exactly opposite disposition of the parts takes place. This movement is limited by the anterior longitudinal ligament, and by the approximation of the spinous processes.
Iodine Allergy in Dogs. As crabs contain small amounts of iodine, and some dogs are allergic to iodine, observer your dog carefully when first giving her crab meat. If your dog shows symptoms such as watery eyes and nose, stomach upset or lethargy, your dog might be allergic to iodine, and itâs not a good idea to continue giving your dog crab meat.
Donât worry, though, while excess sodium is bad for dogs, your dog will need some sodium for maintaining normal body functions. Therefore, unless your dog is allergic to iodine, she can occasionally eat a piece of crab meat.