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Anatomy of the larynx

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Anatomy of the larynx

  1. 1. Anatomy of The Larynx By Amin Abusallamah
  2. 2. Contents• Position• Formation – Cartilages – Ligaments & membranes – Muscles• Blood & nerve supply• Lymphatic drainage
  3. 3. PositionLarynx position between pharynx and trachea
  4. 4. Cartilages of larynx1. Thyroid 32. Cricoid 53. Epiglottis 4 14. Arytenoids 25. Corniculate
  5. 5. Ligaments & membranes1. Hyoepiglottic ligament 1 22. Thyro hyoid membrane 43. Cricothyroid ligament 34. Thyro-epiglottic ligament 55. Cricotracheal ligament
  6. 6. Muscles of larynx
  7. 7. Innervation• Motor – External laryngeal – Recurrent laryngeal• Sensory – Internal laryngeal – Recurrent laryngeal
  8. 8. Blood supply1. Superior laryngeal artery from superior thyroid artery and superior laryngeal vein drains into superior thyroid vein.2. Inferior laryngeal artery from inferior thyroid artery and inferior laryngeal vein drains into inferior thyroid vein.
  9. 9. lymphatic drainage1. Upper part drains into upper deep cervical lymph nodes.2. Lower part drains into lower deep cervical lymph nodes.

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