what organs form the human respiratory systems
the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the body's exterior.
http://www.innerbody.com/anatomy/respiratory
The human respiratory system is formed by several organs that work together to facilitate the process of breathing and exchange of gases. The main organs of the respiratory system include:
1. Nose and Nasal Cavity: The nose and nasal cavity are responsible for filtering, warming, and moisturizing the air we breathe.
2. Pharynx: The pharynx, also known as the throat, serves as a common passage for air and food. It is responsible for directing air into the correct pathway (lungs) and food into the digestive system.
3. Larynx: The larynx, or voice box, houses the vocal cords. It is responsible for producing sound when air passes through, enabling speech.
4. Trachea: The trachea, commonly known as the windpipe, is a tube-like structure that connects the larynx to the bronchi. It allows the passage of air to and from the lungs.
5. Bronchi: The bronchi are two large airways that branch off from the trachea and lead to the lungs. They progressively branch into smaller airways called bronchioles.
6. Lungs: The lungs are the main organs of the respiratory system. They are responsible for the exchange of oxygen and carbon dioxide in the blood. The right lung has three lobes, while the left lung has two lobes to accommodate the heart.
7. Alveoli: Within the lungs, there are millions of tiny air sacs called alveoli. These sacs have thin walls and are the site where oxygen is absorbed into the bloodstream and carbon dioxide is expelled.
It is important to note that while these are the main organs of the respiratory system, there are also other structures such as the diaphragm, intercostal muscles, and pleura that play essential roles in the breathing process.