| 1
.
| Sternohyoid muscle (cut across near insertion) |
| 2
.
| Anterior jugular vein |
| 3
.
| Thyroid cartilage (covered by membrane) |
| 4
.
| Upper pointer: Levator muscle of thyroid gland Lower pointer: Fibrous-remnant of thyroglossal duct |
| 5
.
| Sternohyoid muscle |
| 6
.
| Sternocleidomastoid muscle |
| 7
.
| Prelaryngeal lymph nodes |
| 8
.
| Branch of superficial cutaneous nerve (displaced inward at termination) |
| 9
.
| Isthmus of thyroid gland |
| 10
.
| Middle layer of superficial fascia |
| 11
.
| Anterior jugular veins (connected by jugular venous arch) |
| 12
.
| Superior thyroid artery |
| 13
.
| Thyrohyoid muscle |
| 14
.
| Internal jugular vein |
| 15
.
| Cricothyroid branch superior thyroid artery |
| 16
.
| Position of oblique line thyroid cartilage |
| 17
.
| Ansa hypoglossi |
| 18
.
| Pyramidal lobe of thyroid gland |
| 19
.
| Sternothyroid muscle |
| 20
.
| Aberrant muscle fascicle attaching to carotid sheath |
| 21
.
| Nerves to sternothyroid muscle |
| 22
.
| Site of entry into internal jugular vein of jugular, subclavius and anterior mediastinal trunks |
| 23
.
| Upper pointer: Nerves entering sternohyoid muscle Lower pointer: Sternohyoid muscle (divided and reflected anteriorly) |
| 24
.
| Sternoclavicular ligament and clavicle |
