Temporalis muscle
- Extends from the superior temporal line to the coronoid process of mandible.
- Its fibers converge and descend between the zygomatic process and the lateral side of the cranium to a tendon that attaches to the coronoid process.
- The muscle’s outer surface is covered by the temporal fascia,
- Which is comprised by a single layer over the posterior 3/4 of the muscle
- Divides into (on the outer surface of the anterior quarter of the muscle)
- Superficial layers
- Attaches to the lateral border of the orbital rim and zygomatic arch.
- Deep layers
- Attaches to the deep layer attaches to the medial border of the orbital rim and zygomatic arch
- A fat pad and a temporal vein fill the space between the two fascial layers.
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