1
.
| Upper pointer: Body of mandible Lower pointer: Submandibular gland |
2
.
| Anterior belly digastric muscle |
3
.
| Dense fibrous tissue covering body hyoid bone |
4
.
| Thyrohyoid brach of hypoglossal nerve (constituent fibers derived from cervical nerves I - II) |
5
.
| Superior thyroid artery |
6
.
| Thyrohyoid muscle |
7
.
| Omohyoid muscle (superior belly) |
8
.
| Sternohyoid muscle |
9
.
| Superior deep cervical lymph nodes |
10
.
| Nerve to omohyoid muscle |
11
.
| External jugular vein (cut off) |
12
.
| External maxillary artery and submandibular lymph node |
13
.
| Deep cervical lymph node |
14
.
| Cervical nerve III |
15
.
| Descending branch hypoglossal nerve (fibers derived from cervical nerves I - II) |
16
.
| Position of common carotid artery (covered by carotid sheath) |
17
.
| Prevertebral fascia |
18
.
| Internal jugular vein (carotid sheath partially removed) |
19
.
| Descending cervical nerve (fibers from cervical nerve II-III which join descending branch hypoglossal nerve to form ansa hypoglossi) |
20
.
| Descending branch hypoglossal nerve |
21
.
| Anterior supraclavicular nerves (cut off) |
22
.
| Sternocleidomastoid branch of superior thyroid artery |
23
.
| Ansa hypoglossi |