Human Respiratory System is composed of the airways (upper and lower), the lungs, and the blood vessels. The nose, paranasal sinus, and pharynx are the parts of the upper airways system while the lower airways system consists of the larynx, trachea, and stem bronchi. The lungs are soft spongy organs that function as the main site for the gaseous exchange. The major respiratory muscle, the diaphragm, and the intercostal muscles of the chest wall work together to push air into the lungs. The ... Learn about the human respiratory system , its organs, and how it works. See a diagram of the respiratory system and its components, such as nose, pharynx, larynx, trachea, bronchi, lungs, alveoli, and diaphragm. Human respiratory system includes organs that support breathing- the nose, mouth, pharynx, larynx, trachea, bronchi, and lungs. Know more about the organs and functions of the respiratory system . Learn about the human respiratory system , a complex network of organs and tissues that enables breathing and gas exchange. See a diagram of the respiratory system and test your knowledge with an interactive quiz.
