Dissection of left submaxillary (submandibular) gland and related structures

Digrastic and carotid triangles, lateral view

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Image #68-6
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Dissection of left submaxillary (submandibular) gland and related structures
Digrastic and carotid triangles, lateral view
The submaxillary duct (6), nerves and artery (3) have been retained. The hypoglossal nerve (17) is partially visible.
1 . Inferior alveolar nerve
2 . Stylohyoid muscle
3 . Upper pointer: Submandibular branch of external maxillary artery Lower pointer: Submandibular branches of submandibular ganglion
4 . External maxillary artery
5 . Mylohyoid muscle (posterior border)
6 . Submandibular duct
7 . Investing fascia of submandibular gland
8 . Anterior belly digastric muscle
9 . Hyoid bone (covered by fibrous tissue)
10 . Mylohyoid muscle (near midline raphe)
11 . Thyrohyoid muscle
12 . Posterior belly of digastric muscle
13 . Superior deep cervical lymph node
14 . Prevertebral fascia
15 . Internal jugular vein
16 . Angle of mandible
17 . Hypoglossal nerve (lingual branch)
18 . Common facial vein
19 . Lingual artery
20 . Descending branch hypoglossal nerve
21 . Anterior branch of cervical nerve III
22 . Thyrohyoid branch hypoglossal nerve
23 . Common carotid artery (covered by carotid sheath)
24 . Anterior branch of cervical nerve IV
25 . Superior thyroid artery