Term Category: Anatomy
The superior laryngeal nerve external branch, is a significant component of the nervous system involved in vocal function. Emerging from the vagus nerve, this branch innervates the cricothyroid muscle in the larynx. The cricothyroid muscle plays a pivotal role in pitch modulation during speech and singing. The superior laryngeal nerve's external branch is responsible for controlling this muscle's contraction, allowing for adjustments in vocal fold tension and subsequently influencing the pitch of the voice.
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