Bassett Collection of Stereoscopic Images of Human Anatomy

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KEYWORDS: Peripheral nervous system, Vasculature.

Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Dissection of head and neck from a posterior approach

Relations of facial, vagus, accessory, hypoglossal and internal carotid nerves; internal jugular vein

The accessory nerve has been reflected anteriorly to show its communication with the vagus nerve.

1 .	Posterior semicircular canal
2 .	Transverse sinus (sigmoid portion)
3 .	Mastoid cells
4 .	Facial nerve (VII) emerging from stylomastoid foramen
5 .	Superior bulb of jugular vein (internal surface)
6 .	Upper pointer: Internal branch accessory nerve Lower pointer: External branch accessory nerve
7 .	Retromandibular process parotid gland
8 .	Styloid process temporal bone (covered by periosteum)
9 .	Posterior belly of digastric muscle
10 .	Internal jugular vein
11 .	Digastric branch of facial nerve
12 .	Tendon of longissimus capitis muscle (cut across)
13 .	Occipital artery
14 .	Vestibulocochlear nerve (VIII)
15 .	Petro-occipital synchondrosis
16 .	Accessory nerve (XI) (reflected anteriorly)
17 .	Jugular ganglion of vagus nerve (X)
18 .	Lateral part of occipital bone (cut across)
19 .	Hypoglossal nerve (XII)
20 .	Upper pointer: Ascending pharyngeal artery Lower pointer: Alar fascia
21 .	Longus capitis muscle
22 .	Internal carotid nerve
23 .	Internal carotid artery
24 .	Vagus nerve (X)