superior rectus muscle (noun)

1. As the deranged killer slowly walked towards his victim, his dead eyes flickered upward and medially, indicating the tightening of his superior rectus muscles.

2. The painting depicted a haunting scene with the subject's eyes turned upward and medially, emphasizing the tension in their superior rectus muscle.

3. In the intense battle scene, the anime character's eyes glowed with determination as they activated their superior rectus muscle, turning their gaze upward and medially.

4. During World War II, soldiers in trench warfare would often strain their superior rectus muscles to survey the battlefield and keep an eye out for any potential threats.