5 Face: Deep Dissection



10.1055/b-0037-146630

5 Face: Deep Dissection


Maria Peris-Celda and Takeshi Funaki

Fig. 5.1. Cranial, facial, and cervical dissection, lateral view, left side. The facial musculature has been removed. Part of the ramus and body of the mandible have been removed to partially expose the infratemporal fossa. A craniotomy leaving the sutures and superior temporal line intact has been performed to expose the brain.
Fig. 5.2. Detailed lateral view of the left infratemporal fossa with part of the ramus of the mandible removed.
Fig. 5.3. Infratemporal fossa, anterolateral view, left side. The mandible and the zygomatic arch have been removed.
Fig. 5.4. Infratemporal fossa, lateral view, left side. The lateral pterygoid muscle has been removed. The medial pterygoid muscle has been retracted anteriorly to expose the external carotid artery and its branches.
Fig. 5.5. Infratemporal fossa, lateral view, left side. The ramus of the mandible and the pterygoid muscles have been removed. The mastoid process has been removed to expose the sigmoid sinus, jugular bulb, semicircular canals, and dura mater of the posterior cranial fossa.
Fig. 5.6. Head and neck regions, lateral view, left side.
Fig. 5.7. Anterolateral view of the infratemporal fossa after removal of the mandible and pterygoid muscles, left side. The maxillary artery has been retracted anteriorly and the superficial temporal artery divided. The internal carotid artery has been exposed inferior to its entrance into the cranial base.
Fig. 5.8. Facial and cranial regions, lateral view, left side. The left maxillary sinus has been opened. The middle cranial fossa floor has been removed with a drill to expose the anterior part of the temporal lobe.
Fig. 5.9. Infratemporal fossa in a different specimen. Lateral view, right side. Part of the ramus of the mandible has been removed. The mandibular canal has been opened, and the zygomatic arch removed.
Fig. 5.10. Detailed view of the right infratemporal fossa, lateral view.
Fig. 5.11. Infratemporal fossa, lateral view, right side. The ramus of the mandible and posterior part of the body have been removed.
Fig. 5.12. Submandibular and infratemporal regions, anterior view, right side. The submandibular gland has been retracted laterally.
Fig. 5.13. Deep facial region, lateral view, right side. The oral cavity has been opened, and the carotid artery and its branches are exposed. The posterior belly of the digastric muscle has been resected.
Fig. 5.14. Head sectioned in the coronal plane at the level of the pterygoid processes, anterior view. The infratemporal fossae have been exposed.
Fig. 5.15. Head sectioned in the coronal plane at the level of the pterygoid processes, anterior view, right side. The lower head of the lateral pterygoid muscle has been removed.
Fig. 5.16. Detailed view of the right infratemporal fossa and foramen ovale after removal of the lower head of the lateral pterygoid muscle and pterygoid venous plexus.
Fig. 5.17. Right infratemporal fossa, anterior view. The mandible, pterygoid muscles, and the lower part of the temporal muscle have been removed. The mandibular nerve divides into its branches below the foramen ovale.
Fig. 5.18. Specimen divided in the coronal plane. The right pterygoid process has been removed, and the auditory tube has been retracted laterally to expose the lower part of the clivus.

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May 23, 2020 | Posted by in OPHTHALMOLOGY | Comments Off on 5 Face: Deep Dissection
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