Which of the following organs is NOT involved in the respiratory process?

The intestines are not involved in the respiratory process, making them the correct choice here. The respiratory system is primarily responsible for the exchange of gases—specifically oxygen and carbon dioxide—between the body and the environment. The organs that are part of this system include the nose, larynx, and bronchi, all of which play key roles in facilitating respiration.

The nose serves as the entry point for air, where it is warmed, moistened, and filtered. The larynx, often referred to as the voice box, not only plays a role in sound production but also acts as a passageway for air between the pharynx and trachea, helping to direct airflow. The bronchi further distribute air into the lungs, where the actual exchange of gases takes place. In contrast, the intestines are part of the digestive system and do not participate in the respiratory process, focusing instead on the breakdown and absorption of nutrients from food.