Organ System Dogs. What is the general structure of the cardiovascular system? It helps host the useful flora in the intestine and pick up the fecal matter as a part of the normal digestion.
The integumentary system is the skin and fur that cover the animal's body. Here are the different parts of the canine digestive tract and purpose they serve: The ear canal of the dog is much deeper than that of people and creates a better funnel to carry sound to the eardrum.