| 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 |
