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Find information on animal health topics, written for the veterinary professional.

* This is the Veterinary Version. *

The Nervous System of Dogs

By William B. Thomas, DVM, MS, DACVIM (Neurology), Professor, Neurology and Neurosurgery, Department of Small Animal Clinical Sciences, University of Tennessee ; Cheryl L. Chrisman, DVM, MS, EDS, DACVIM (Neurology), Professor of Veterinary Neurology, College of Veterinary Medicine, University of Florida ; Charles E. Rupprecht, VMD, MS, PhD, Director, LYSSA LLC ; Kyle G. Braund, BVSc, MVSc, PhD, FRCVS, DACVIM (Neurology), Director, Veterinary Neurological Consulting Services ; Caroline N. Hahn, DVM, MSc, PhD, DECEIM, DECVN, MRCVS, Senior Lecturer in Veterinary Clinical Neuroscience, Royal (Dick) School of Veterinary Studies, University of Edinburgh ; Charles M. Hendrix, DVM, PhD, Professor, Department of Pathobiology, College of Veterinary Medicine, Auburn University ; Karen R. Munana, DVM, MS, DACVIM (Neurology), Associate Professor, Department of Clinical Sciences, College of Veterinary Medicine,North Carolina State University ; T. Mark Neer, DVM, DACVIM, Professor and Hospital Director, Center for Veterinary Health Sciences, Oklahoma State University ; Robert Wylie, BVSc, QDA

Also see professional content regarding the nervous system.

The nervous system is made up of the brain, spinal cord, and several different kinds of nerves that are found throughout the body. These create complex circuits through which animals experience and respond to sensations.

A familiar type of nervous system circuit is a reflex. Reflexes are simple networks found in the nervous system of all animals. For example, when the eyelid is touched, it closes; when the toe is pinched, the foot pulls away “automatically.”

Many different types of diseases can affect the nervous system, including birth defects, infections, inflammatory conditions, poisoning, metabolic disorders, nutritional disorders, injuries, degenerative diseases, or cancer. Neurologic diseases are often more common in a particular breed or sex, or tend to occur at a certain age.

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Also see professional content regarding the nervous system.

* This is the Veterinary Version. *