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Dissection of anterior and lateral regions of neck

Relations of thyroid gland, anterior view

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Image #74-7
Diagram Image
Legend Image
Dissection of anterior and lateral regions of neck
Relations of thyroid gland, anterior view
The sternocleidomastoid and infrahyoid muscles of the right side have been partially cut away. The left clavicle has been removed. The left subclavian artery, the trunks of the brachial plexus and the junction of the subclavian vein with the internal jugular vein are visible.
  1. Superficial fascia (external layer)
  2. External jugular vein
  3. Sternocleidomastoid muscle (cut across)
  4. Upper pointer: Superficial fascia (middle layer) Lower pointer: Sternohyoid muscle and omohyoid muscle (cut across)
  5. Upper pointer: Remnant of thyroglossal duct Lower pointer: Thyroid cartilage
  6. Sternothyroid muscle (cut across)
  7. Internal jugular vein right
  8. Omohyoid muscle (cut across)
  9. Right and left lobe of thyroid gland
  10. Clavicle
  11. Right lymphatic duct
  12. Upper pointer: Trachea Lower pointer: Inferior thyroid vein right
  13. Clavicular part pectoralis major muscle
  14. Upper pointers: Sternothyroid muscles (cut across) Lower pointers: Sternohyoid muscles (cut across)
  15. Upper pointer: Mandible Lower pointer: Anterior belly digastric. muscle
  16. Common carotid artery (pointer at bifurcation)
  17. Internal jugular vein
  18. Cervical nerve III
  19. Cervical nerve IV
  20. Thyrohyoid muscle
  21. Superficial cervical artery
  22. Ansa hypoglossi
  23. Cricothyroid muscle
  24. Anterior scalene muscle
  25. Upper trunk of brachial plexus
  26. Middle trunk of brachial plexus
  27. Phrenic nerve
  28. Subclavian artery
  29. Upper pointer: Axillary lymph node (subclavian node) Lower pointer: Tributary to subclavian trunk
  30. Subclavian vein
  31. Upper pointer: Lymphatic trunk from anterior mediastinal lymph nodes Lower pointer: Internal mammary lymphatic trunk
  32. Clavicular origin of sternohyoid muscle (clavicle removed)
  33. Costoclavicular ligament (cut across)