General orientation views of dissection

Deep dissection of head and neck, left lateral view; brain removed

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Image #49-7

General orientation views of dissection Deep dissection of head and neck, left lateral view; brain removed The left half of the calvaria has been removed and the cerebral hemispheres cut away to expose the left optic tract (2) encircling the cerebral peduncle (26). The close-up views which illustrate more details of this dissection are to be found as follows 1 . Falx cerebri 2 . Optic tract 3 . Lateral rectus muscle (lateral wall of orbit cut away) 4 . Superior tarsus 5 . Ophthalmic nerve in cavernous sinus 6 . Upper pointer: Maxillary nerve Lower pointer: Sphenopalatine artery 7 . Nasal cavity (opened) 8 . Upper pointer: Buccal nerve (crossing internal maxillary artery) Lower pointer: Lateral plate of pterygoid process 9 . Maxilla (partially cut away) 10 . Buccinator muscle (cut away to expose tongue) 11 . Upper pointer: Tongue Lower pointer: Medial incisor (sectioned) 12 . Sublingual gland 13 . Mandible (cut across) 14 . Mylohyoid muscle 15 . Anterior belly digastric muscle 16 . Common carotid artery 17 . Thyroid cartilage 18 . Inferior pharyngeal constrictor muscle 19 . Cricothyroid muscle 20 . Vagus nerve (X) 21 . Trachea 22 . Common carotid artery (cut across) 23 . Sternoclavicular articulation 24 . Junction of tentorium cerebelli with falx cerebri 25 . Lambdoidal suture 26 . Upper pointer: Lateral geniculate body Lower pointer: Base of peduncles 27 . Semilunar ganglion (CN V) 28 . Upper pointer: External acoustic meatus (auricle removed) Lower pointer: Mastoid cells (dissected) 29 . Auriculotemporal nerve 30 . Facial nerve (VII) 31 . External carotid artery 32 . Posterior belly of digastric muscle 33 . Upper pointer: Inferior alveolar nerve Lower pointer: Lingual nerve 34 . Internal pterygoid muscle 35 . Hypoglossal nerve (XII) 36 . Longus capitis muscle 37 . Cervical nerve IV 38 . Longissimus cervicis muscle 39 . Anterior scalene muscle 40 . Middle scalene muscle 41 . Posterior scalene muscle 42 . Brachial plexus (cut across through roots) 43 . Subclavian artery (cut off) 44 . Rib I (periosteum removed to show small area of rib)