The respiratory system refers to the parts of our body that help us breathe. It includes organs like the lungs, nose, and trachea, which work together to take in oxygen from the air and release carbon dioxide. Full definition
Technically, it is a very contagious illness that is characterized by a distinct cough, that is caused from inflammation in the upper respiratory system of dogs. (all-about-goldens.com)
Considering their very sensitive respiratory system, we need to be cautious about what goes into the air around our birds. (petbusiness.com)
Similar to that of humans, canine respiratory system includes the mouth, nose, throat, and lungs. (practical-pet-care.com)