The cricothyroid muscle is a small but important muscle located in the neck. It plays a crucial role in the function of the larynx, which is responsible for producing sound. The muscle helps to adjust the tension of the vocal cords, allowing for changes in pitch during speech and singing. When the cricothyroid muscle contracts, it tilts the thyroid cartilage downward and forward, stretching the vocal cords. This action increases the pitch of the sound produced. Proper functioning of the cricothyroid muscle is essential for clear and varied vocalization, making it significant for both communication and artistic expression.