he respiratory system consists of organs involved in breathing. They include nose, throat (pharynx), windpipe, bronchi, bronchioles and lungs. The nasal cavity and pharynx are together referred as the upper respiratory system.
he respiratory system consists of organs involved in breathing. They include nose, throat (pharynx), windpipe, bronchi, bronchioles and lungs. The nasal cavity and pharynx are together referred as the upper respiratory system.