Use caution when training. The dog has a very complex nervous system. The brain plays an important role in the complex behavior of the dog. It governs learning, motivation and perception. The spinal cord acts as a conductor and governs reflex actions.
Reflexes are very important to a dog's everyday life.
Responsibilities of reflexes include things like blinking or scratching an itch, twitching ears, hair that stands on end and the like. Distemper and rabies can severely damage a dog's nervous system. Get your dog vaccinated regularly against these deadly diseases. Dogs differ from humans when it comes to the digestive system as well. No digestion takes place in the dog's mouth as opposed to humans.