Final answer:
Disconnecting an endotracheal tube (ETT) would result in less air traveling through the trachea, as the tube is responsible for maintaining an open airway to the lungs.
Step-by-step explanation:
The consequence of disconnecting an endotracheal tube (ETT) is that less air could travel through the trachea. The purpose of an endotracheal tube is to maintain an open airway to the lungs and seal the airway off from the oropharynx. Disconnecting the tube would disrupt this process and restrict the airflow.