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Dissection of left temporal region

Temporal muscle, lateral view

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Image #64-4
Diagram Image
Legend Image
Dissection of left temporal region
Temporal muscle, lateral view
The zygomatic arch has been resected to reveal a separate layer of muscle (8) which arises from the inner surface of the arch and inserts on the coronoid process of the mandible. This muscle fascicle is supplied by a branch of masseteric nerve (12). A delicate sheet of muscle fibres related to the temporal fascia covers the main mass of the temporal muscle and is supplied by a branch (6) of the anterior deep temporal nerve.
  1. Coronal suture
  2. Frontal bone
  3. Temporal line
  4. Temporalis muscle
  5. Zygomaticotemporal branches of zygomatic nerve
  6. Nerve filament to superficial fascicle of temporalis muscle
  7. Remnant of temporal fascia which was attached to zygomatic arch
  8. Muscle origin from zygomatic arch (bone resected)
  9. Zygomaticofacial branch zygomatic nerve
  10. Malar surface zygomatic bone
  11. Position of coronoid process of mandible
  12. Masseteric nerve
  13. Tendon of masseter muscle
  14. Branches of facial nerve (reflected with parotid gland)
  15. Parietal bone
  16. Occipitalis muscle (cut across)
  17. Zygomatic process temporal bone (cut across)
  18. Origin of posterior auricular muscle
  19. Occipital branch of posterior auricular nerve
  20. Upper pointer: Middle temporal artery Lower pointer: Superficial temporal artery
  21. External acoustic meatus
  22. Auriculotemporal nerve (cut across)
  23. Lesser occipital nerve
  24. Parotid gland (reflected posteriorly)
  25. Parotid duct
  26. Sternocleidomastoid muscle and great auricular nerve