What is upper respiratory tract?
The respiratory tract includes the parts of your body that are involved in breathing. Doctors often distinguish these parts into the upper respiratory tract, and the lower respiratory tract. The upper respiratory tract consists of: the nose, sinuses – air-filled cavities in cheekbones and forehead, throat and tonsils,pharynx – area at the back of the throat, and larynx or ‘voice box’. The upper respiratory tract is quite prone to infections because disease causing germs such as bacteria and viruses can easily reach these parts along with the air that we breathe in.