Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Laryngopharynx
2. Hyoglossus m.
3. Stylohyoid m.
4. Submandibular gland
5. Hyoid bone, greater horn
6. Superior laryngeal nerves (external and internal brs.)
7. Common carotid a.
8. Longus capitis m.
9. Sternocleidomastoid m.
10. Internal jugular v.
11. Vertebral a.
12. Ganglion, dorsal root C4

13. Middle scalene m.
14. Humeral head
15. Deltoid m.
16. Clavicle
17. Triceps brachii m.
18. Trapezius m.
19. Infraspinatus m.
20. Scapular spine
21. Deep cervical v.
22. Transverse cervical a., v., and spinal necessary nerve
23. Vertebra, C6 body
24. Subarachnoid space

25. Interscapular fat
26. Ligamentum nuchae
27. Vertebra, C5 spinous process
28. Spinal cord
29. Multifidus m.
30. Semispinalis capitis m .
31. Longissimus capitis and cervicis mm.
32. Levator scapulae m.
33. Infraspinatus m.
34. Scapular spine
35. Supraspinatus m.
36. Teres minor m.
37. Triceps brachii m.
38. Trapezius m.
39. Clavicle
40. Vertebra, C6 transverse process
41. Humeral head, capsule
42. Scapula, acromion process
43. Deltoid m.
44. Middle scalene m.

45. Dorsal root ganglion, C5
46. Internal carotid a., bifurcation from common carotid a.
47. Vertebral a.
48. External carotid a., bifurcation from common carotid a.
49. Anterior scalene m. and hyoid bone, greater horn
50. Superior laryngeal nerves (external and internal brs.) and hyoid br. of lingual a.
51. Retromandibular v.
52. Hyoglossus m.
53. Submandibular gland
54. Platysma m.
55. Aryepiglottic fold
56. Superior thyroid a. and v. and superior laryngeal nerve
57. Hyoid bone, lesser horn
58. Mylohyoid m.
59. Digastric (anterior belly) m.
60. Epiglottic cartilage
61. Hyoid bone
62. Transversus linguae m.
63. Mandible