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Dissection of head and neck from a posterior approach

Larynx; arytenoid and posterior cricoarytenoid muscles, quadrangular membrane

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Image #83-5
Bassett Image
Diagram Image
Legend Image
Dissection of head and neck from a posterior approach
Larynx; arytenoid and posterior cricoarytenoid muscles, quadrangular membrane
The attachment of the cervical part of the esophagus to the cricoid cartilate (ligamentum cricopharyngeum) has been cut and the esophagus (13) sectioned transversely below the inferior margin of the cricoid cartilage. The quadrangular membrane (15) has been exposed by the removal of the aryepiglottic muscle.
  1. Epiglottis
  2. Lateral thyrohyoid ligament
  3. Superior laryngeal nerve (cut across)
  4. Superior horn thyroid cartilage
  5. Upper pointer: Superior laryngeal artery Lower pointer: Inferior branch of superior laryngeal nerve
  6. Left lamina thyroid cartilage (inner surface)
  7. Oblique arytenoid muscle
  8. Transverse arytenoid muscle
  9. Anastomotic branch of superior laryngeal nerve with inferior laryngeal nerve
  10. Inferior pharyngeal constrictor muscle (cut across)
  11. Inferior laryngeal nerve
  12. Thyroid gland
  13. Upper pointer: Trachea Lower pointer: Esophagus (sectioned)
  14. Pharyngoepiglottic fold
  15. Upper pointer: Aryepiglottic fold Lower pointer: Quadrangular membrane
  16. Corniculate cartilage
  17. Interarytenoid incisure
  18. Anastomotic branch superior laryngeal nerve with inferior laryngeal nerve
  19. Cricoid cartilage
  20. Posterior cricoarytenoid muscle
  21. Mucosa of pharynx (separated from muscular tunica)