X CLOSE

General orientation views of dissection

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

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Image #49-7
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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)