<P> The respiratory system is the set of organs responsible for the gas exchange between the animal's organism and the environment, that is, the pulmonary hematosis, allowing the cellular respiration . </P> <P> This system has the main function to absorb oxygen and to eliminate much of the residual gases of the cells of the organism, like for example the carbon dioxide . As dogs have few sweat glands on their skin, this would explain the fact that they do not sweat, so the respiratory system also plays an important role in body thermoregulation . </P> <P> Dogs are mammals with two large lungs and lobes, with a spongy appearance due to the presence of a system of delicate branches of the bronchioles in each lung, ending in closed, thin - walled chambers (the points of gas exchange) called alveoli . </P> <P> The presence of a muscular structure, the diaphragm, exclusive of the mammals, divides the peritoneal cavity of the pleural cavity, besides assisting the ribs in the Inhale . </P>

Where is the thorax located on a dog