Dissection of head and neck from a posterior approach

Blood vessels and nerves to left carotid body

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Image #82-1
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Dissection of head and neck from a posterior approach
Blood vessels and nerves to left carotid body
The internal carotid artery and vagus nerve have been retracted posterolaterally and the superior cervical ganglion retracted posteromedially.
1 . Occipital artery
2 . Upper pointer: Sternocleidomastoid muscle Lower pointer: Accessory nerve (XI)
3 . Nodose ganglion of vagus nerve
4 . Vagus nerve (X) (retracted posterolaterally)
5 . Internal carotid artery (retracted posterolaterally)
6 . Upper pointer: Carotid body Lower pointer: Carotid body (accessory)
7 . Nerve filaments entering wall of Internal carotid artery at site of carotid sinus
8 . Artery which supplies carotid body
9 . Internal jugular vein
10 . Middle pharyngeal constrictor muscle
11 . Internal carotid nerve
12 . Superior laryngeal nerve
13 . Gray rami communicantes (to cervical nerve I-II)
14 . Superior cervical ganglion
15 . Inferior pharyngeal constrictor muscle
16 . Nerves to carotid body (branches of glossopharyngeal nerve (IX))
17 . Pharyngeal plexus vagus nerve
18 . Superior horn thyroid cartilage
19 . Superior cardiac branch vagus nerve
20 . Sympathetic trunk