What is the consequence of injury to the external branch of the laryngeal nerve?

Explanation

Damage to the external laryngeal nerve primarily affects the cricothyroid muscle, leading to changes in the voice's pitch and quality, often described as loss of voice timbre. Hoarseness and breathing problems are more commonly associated with injury to the recurrent laryngeal nerve. Sensory loss in the larynx is not caused by external laryngeal nerve damage.