Final answer:
The respiratory system includes the nose, nasal cavity, pharynx, larynx, trachea, bronchioles, and alveoli, as well as the lungs, which work together to exchange gases with the environment.
Step-by-step explanation:
The respiratory system consists of the nose, nasal cavity, pharynx, larynx, trachea, and the bronchiole tree that ends at air sacs called alveoli, and the lungs. These organs work together to facilitate the exchange of oxygen and carbon dioxide between the body and the environment. The upper respiratory tract includes the nose, nasal cavity, and pharynx, while the lower respiratory tract includes the larynx, trachea, bronchi, bronchioles, and alveoli. The nasal cavity performs several important functions, such as filtering, warming, and moistening the air we breathe. The pharynx serves as a pathway for both air and food, while the larynx contains the vocal cords. The trachea, or windpipe, leads to the bronchi, which branch into smaller bronchioles throughout the lungs, and finally end in the alveolar sacs, where gas exchange occurs.