Temporalis is a fan-shaped muscle located on the side of the head, critical for the movement of the jaw during chewing and speaking. It assists in elevating the mandible and contributes to the retraction of the jaw, making it essential for the biting function. As one of the main muscles of mastication, it plays a key role in ensuring proper food processing and communication through facial expression.
The name "Temporalis" is derived from its location on the temporal bone of the skull, and its name reflects its temporal (time-related) positioning as it overlays this region.
Without the Temporalis muscle, individuals would struggle with basic actions such as chewing and biting, significantly impairing their ability to process food properly for digestion. Speech articulation and the expression of emotions through facial movement would also be diminished, affecting both nutritional intake and social interaction.
