Which term describes the process of breathing that emphasizes the use of neck muscles?

The term that describes the process of breathing involving the use of neck muscles is accessory muscle use. This occurs when an individual engages specific muscles in the neck, such as the sternocleidomastoid and scalene muscles, to assist with breathing, particularly in situations where the primary respiratory muscles (like the diaphragm and intercostals) may be insufficient or compromised. Accessory muscle use often indicates a higher level of respiratory distress, where more effort is needed to ensure adequate airflow and oxygenation.

In contrast, diaphragmatic breathing primarily focuses on the action of the diaphragm, promoting deep and efficient breathing without excessive reliance on accessory muscles. Forced expiration refers to the active process of expelling air from the lungs, often engaged during activities like coughing or strenuous exercise, but it does not specifically involve neck muscles. Oxygen therapy is a treatment method for delivering additional oxygen to patients but does not pertain to the mechanics of breathing itself. This clarifies why accessory muscle use is the most appropriate answer in the context of this question.