A sound knowledge of anatomy and physiology is an essential basis for the effective clinical treatment of companion animals and farm animals alike. The fifth edition of this bestselling book continues to provide a comprehensive description of the anatomy and physiology of dogs and cats. It includes 255 online questions and answers to support teaching and learning. The book builds on these foundations with detailed descriptions of exotic small species including birds, and domestic farm animals, including cows, sheep and pigs, as well as the horse.