Anatomy Of Larynx

Anatomy Of Larynx

Question 1. Sinus of larynx
Answer:

• There are two folds of mucous membrane in the cavity of larynx
• They are

1. 1. Vestibular fold
      • It is the upper fold
   2. Vocal fold lower fold
      • The part between vestibular fold and vocal folds is called sinus of larynx

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Question 2. Muscles of larynx and their nerve supply
Answer:

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Question 3. Enumerate structures passing through sinus of morgagni
Answer:

Structures passing through sinus of morgagni

• Eustachian tube – cartilagenous end
• Levator veli palatini muscle
• Ascending palatine artery.

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Question 4. Give the boundaries of inlet of larynx.
Answer:

Boundaries of inlet of larynx

• Anteriorly – Epiglottis
• Posteriorly – interarytenoid fold of mucous membrane
• Each side – ayepiglottic folds

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Question 5. Sinus of morgagni
Answer:

• Also called ventricle of the larynx
• Sinus of morgagni is a narrow fusiform cleft between vestibular and vocal folds
• Sinus of morgagni anterior part is prolonged upwards as a diverticulum between the vestibular fold and the lamina of the thyroid cartilage. This is known as saccule of the larynx.
• Saccule contains mucous glands that help to lubricate the vocal folds.
• So it is often called as oil can of larynx.