Final answer:
Airflow is limited during both exhalation and inhalation with extrathoracic obstruction. Extrathoracic obstruction refers to any blockage or narrowing of the airways outside of the thoracic cavity, such as in the nose or throat. When there is an obstruction, it becomes more difficult for air to flow in or out of the lungs, leading to limited airflow.
Step-by-step explanation:
Airflow is limited during both exhalation and inhalation with extrathoracic obstruction. Extrathoracic obstruction refers to any blockage or narrowing of the airways outside of the thoracic cavity, such as in the nose or throat. When there is an obstruction, it becomes more difficult for air to flow in or out of the lungs, leading to limited airflow. This can cause breathing difficulties and may require medical intervention.