Temporalis
Overview
- Temporalis muscle is one of the four muscles of mastication (the others being masseter, medial pterygoid and lateral pterygoid).
- It is a broad fan-shaped muscle on each side of the head that fills the temporal fossa
Key points
| Temporalis | |
|---|---|
| Innervation | mandibular branch of trigeminal nerve (V3) |
| Action | Elevation and retraction of the mandible |
| Origin | Temporal lines on the parietal bone of the skull and the superior temporal surface of the sphenoid bone |
| Insertion | Coronoid process of the mandible |
Diagram illustrating temporalis
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Diagram illustrating the temporal fossa
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Diagram illustrating temporal lines
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