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Dissection of anterior and lateral regions of neck

Contents of left posterior cervical triangle; superficial cervical lymphatics, lateral view

Image #73-1

KEYWORDS: Fascia and connective tissue, Lymphatics, Muscles and tendons.

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Dissection of anterior and lateral regions of neck

Contents of left posterior cervical triangle; superficial cervical lymphatics, lateral view

The external layer of cervical fascia has been removed from the left side of the neck except from the lower part of the posterior triangle. In this region the lamina of this fascia which passes deep to the sternocleidomastoid and trapezius muscles remains in place. This layer has openings for lymphatic vessels (20) and veins, but can be traced superiorly to the midpart of the view where it becomes continuous with the prevertibral fascia (13). The left shoulder occupies the midforeground of the view.

1 .	Upper pointer: Parotid gland Lower pointer: Parotid-masseteric fascia
2 .	Cervical branch of facial nerve
3 .	Mandibular marginal branch of facial nerve
4 .	Anastomosis of cervical cutaneus nerve with facial nerve
5 .	Platysma (reflected anteriorly)
6 .	External jugular vein
7 .	Cutaneus colli nerve
8 .	Sternocleidomastoid muscle
9 .	Anterior supraclavicular nerves
10 .	Medial supraclavicular nerves
11 .	Upper pointer: Clavicle (acromial end) Lower pointer: Deltoid muscle
12 .	Great auricular nerve
13 .	Prevertebral fascia
14 .	Minor occipital nerve
15 .	Borders of posterior cervical triangle
16 .	Accessory nerve (XI)
17 .	Trapezius muscle
18 .	Posterior supraclavicular nerves
19 .	Superficial cervical lymph glands
20 .	Superficial lymphatic vessel passing through cervical fascia
* .	[Legend above restored translation from Latin]