1. Anatomy of The Larynx
By
Amin Abusallamah

2. Contents
• Position
• Formation
– Cartilages
– Ligaments & membranes
– Muscles
• Blood & nerve supply
• Lymphatic drainage

3. Position
Larynx position between
pharynx and trachea

4. Cartilages of larynx
1. Thyroid 3
2. Cricoid
5
3. Epiglottis 4
1
4. Arytenoids
2
5. Corniculate

5. Ligaments & membranes
1. Hyoepiglottic ligament 1
2
2. Thyro hyoid membrane
4
3. Cricothyroid ligament
3
4. Thyro-epiglottic ligament
5
5. Cricotracheal ligament

6. Muscles of larynx

8. Innervation
• Motor
– External laryngeal
– Recurrent laryngeal
• Sensory
– Internal laryngeal
– Recurrent laryngeal

9. Blood supply
1. 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.

10. lymphatic drainage
1. Upper part drains into upper deep cervical
lymph nodes.
2. Lower part drains into lower deep cervical
lymph nodes.