We're all familiar with the flick of the tail, the pinning back of the ears, the arch of the back, and the showing of teeth. (cat-lovers-only.com)
The head collar for dogs has two basic parts — the collar that fits snugly around the dog's neck just in back of his ears, and the face loop that fits loosely over his muzzle and allows complete and gentle control of the head. (canismajor.com)