Dissection of anterior and lateral regions of neck

Relations of larynx, anterolateral view

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Image #77-1

Dissection of anterior and lateral regions of neck

Relations of larynx, anterolateral view

The infrahyoid muscles have been cut away. The left lobe of the thyroid gland has been removed. The left common carotid artery, internal jugular vein and vagus nerve have been retracted laterally.

1. Omohyoid muscle (cut across)
2. Sternohyoid muscle (cut across)
3. Thyrohyoid muscle (divided and elevated)
4. Thyroid cartilage
5. Cut ends of fibers of thyrohyoid muscle
6. Sternothyroid muscle (cut across)
7. Inferior pharyngeal constrictor muscle
8. Cricothyroid muscle
9. Cricoid cartilage
10. Anterior branch superior thyroid artery
11. Trachea
12. Right lobe thyroid gland
13. Isthmus of thyroid gland (cut across)
14. Brachiocephalic trunk right (duplicated)
15. Sternothyroid muscle (cut across)
16. Anterior jugular vein
17. Thymus
18. Superior cardiac branch vagus nerve
19. Common carotid artery (retracted laterally)
20. Superior thyroid artery
21. Vagus nerve (X) (retracted laterally)
22. Internal jugular vein (retracted laterally)
23. Descending branch hypoglossal nerve
24. Sympathetic trunk
25. Middle cervical ganglion
26. Thyrocervical trunk
27. Middle cardiac nerve
28. Inferior cervical ganglion
29. Phrenic nerve
30. Anterior scalene muscle
31. Upper pointer: Recurrent laryngeal nerve Lower pointer: Paratracheal lymph node
32. Termination of lymphatic ducts in internal jugular vein
33. Subclavian vein
34. Fascia extending into mediastinum from carotid sheath